Buddhism.

MLA

Humphreys, Christmas. Buddhism. 3th ed. repr. Harmondsworth: Penguin books, 1975.

APA

Humphreys, C. (1975). Buddhism. 3th ed. repr. Harmondsworth: Penguin books.

Chicago

Humphreys, Christmas Buddhism. 3th ed. repr. Harmondsworth: Penguin books, 1975.