Blokhuis, H.J.; Ekkel, E.D.; Korte, S.M.; Hopster, H.; van Reenen, C.G.
Farm animal welfare research in interaction with society.
Veterinary Quarterly 2000 Oct.; 22 (4) : 217-222. Review.

Luy, J.; Hildebrandt, G.; von Mickwitz, G.
[The vegetarian appeal and killing animals. An ethical challenge].
Berliner und Münchener Tierärztliche Wochenschrift 2001 Jul.-Aug.; 114 (7-8) : 283-289. [German]

Francione, Gary L.; Watson, Alan | 2000
Introduction to Animal Rights. Your Child or the Dog? – 229 p.
Temple University Press, Philadelphia, PA, USA.
ISBN 1566396921

Garner, Robert (Ed.) | 1997
Animal Rights. The Changing Debate. – 256 p.
New York University Press, New York, NY, USA.
ISBN 0814730981

Guither, Harold D. | 1998
Animal Rights. History and Scope of a Radical Social Movement.- Reissue Edition – 272 p.
Southern Illinois University Press, Carbondale, IL, USA.
ISBN 0809321998

Singer, Peter; Reich, Susan (Ed.) | 1990
Animal Liberation. – Second Edition – 320 p.
New York Review of Books, New York, NY, USA.
ISBN 0940322005

Donovan, Josephine (Ed.); Adams, Carol J. (Ed.) | 2000
Beyond Animal Rights. A Feminist Caring Ethic for the Treatment of Animals. – 216 p.
Continuum International Publishing Group, Dulles, VA, USA.
ISBN 0826412599

Clark, Stephen R.L. | 1997
Animals and Their Moral Standing. – 208 p.
Routledge, London, UK and New York, NY, USA.
ISBN 0415135605

Clark, Stephen R.L. | 1977
The Moral Status of Animals. – 221 p.
Clarendon Press, Oxford, UK.

Clark, Stephen R.L. | 1984
The Moral Status of Animals. – Reprint
Oxford University Press, Oxford, UK.
ISBN 0192830405

Clarke, Paul A.B. (Ed.); Linzey, Andrew (Ed.) | 1990
Political Theory and Animal Rights.
Pluto Press, London, UK and Winchester, MA, USA.
ISBN 0745303919

Godlovitch, Stanley and Roslind (Eds.); Harris, John (Ed.) | 1971
Animals, Men and Morals. An Inquiry Into the Maltreatment of Non-Humans.
Victor Gollancz, London, UK.

Midgley, Mary | 1998
Animals and Why They Matter. – Reissue Edition – 160 p.
University of Georgia Press, Athens, GA, USA.
ISBN 0820320412

Orlans, Barbara F. (Ed.); Beauchamp, Tom L. (Ed.) | 1998
The Human Use of Animals. Case Studies in Ethical Choice.
Oxford University Press, Oxford, UK.
ISBN 019511907X

Orlans, Barbara F. (Ed.); Beauchamp, Tom L. (Ed.); Dresser, Rebecca (Ed.); Gluck, John P. (Ed.) | 1998
The Human Use of Animals. Case Studies in Ethical Choice. – 304 p.
Oxford University Press, Oxford, UK.
ISBN 0195119088

Singer, Peter | 1976
Pro Mens Pro Dier.
Uitgeverij Anthos, Baarn, Nederland.

Singer, Peter | 1991
Animal Liberation. – Revised Edition.
Avon / Hearst Corporation, New York, NY, USA.
ISBN 0380713330

Singer, Peter; Reich, Susan (Ed.) | 1990
Animal Liberation. – Second Edition – 320 p.
New York Review of Books, New York, NY, USA.
ISBN 0940322005