Cita APA (7a ed.)

Rohatyn, D. (1987). The reluctant naturalist: A study of G.E. Moore's "Principia ethica". University Press of America.

Cita Chicago Style (17a ed.)

Rohatyn, Dennis. The Reluctant Naturalist: A Study of G.E. Moore's "Principia Ethica". Lanham [etc.]: University Press of America, 1987.

Cita MLA (9a ed.)

Rohatyn, Dennis. The Reluctant Naturalist: A Study of G.E. Moore's "Principia Ethica". University Press of America, 1987.