APA

Lepp I., . (1966). The ways of friendship. New York: The Macmillan.

Chicago

Lepp Ignace, . 1966. The ways of friendship. New York: The Macmillan.

Harvard

Lepp I., . (1966). The ways of friendship. New York: The Macmillan.

MLA

Lepp Ignace, . The ways of friendship. New York: The Macmillan. 1966.