APA (7th ed.) Citation

Rollin, B. E. (1990). The unheeded cry : animal consciousness, animal pain and science / Bernard E. Rollin: Animal consciousness, animal pain and science. Oxford Paperbacks.

Chicago Style (17th ed.) Citation

Rollin, Bernard E. The Unheeded Cry : Animal Consciousness, Animal Pain and Science / Bernard E. Rollin: Animal Consciousness, Animal Pain and Science. Oxford: Oxford Paperbacks, 1990.

MLA (9th ed.) Citation

Rollin, Bernard E. The Unheeded Cry : Animal Consciousness, Animal Pain and Science / Bernard E. Rollin: Animal Consciousness, Animal Pain and Science. Oxford Paperbacks, 1990.

Warning: These citations may not always be 100% accurate.