MLA

Gray, David Francis. Immunology : an Outline of Basic Principles, Problems and Theories Concerning the Immunological Behaviour of Man and Animals. 2nd ed. London: Arnold, 1972.

APA

Gray, D. Francis. (1972). Immunology : an outline of basic principles, problems and theories concerning the immunological behaviour of man and animals. 2nd ed. London: Arnold.

Chicago

Gray, David Francis Immunology: An Outline of Basic Principles, Problems and Theories Concerning the Immunological Behaviour of Man and Animals. 2nd ed. London: Arnold, 1972.