Cita APA (7th ed.)

Trigg,Roger. (1988). Ideas of human nature: An historical introduction. Blackwell Publishers.

Cita Chicago (17th ed.)

Trigg,Roger. Ideas of Human Nature: An Historical Introduction. Oxford: Blackwell Publishers, 1988.

Cita MLA (9th ed.)

Trigg,Roger. Ideas of Human Nature: An Historical Introduction. Blackwell Publishers, 1988.