APA

Beecher M., Beecher W., . (1971). The mark of Cain: an anatomy of jealousy. New York: Harper & Row.

Chicago

Beecher Marguerite, Beecher Willard, . 1971. The mark of Cain: an anatomy of jealousy. New York: Harper & Row.

Harvard

Beecher M., Beecher W., . (1971). The mark of Cain: an anatomy of jealousy. New York: Harper & Row.

MLA

Beecher Marguerite, Beecher Willard, . The mark of Cain: an anatomy of jealousy. New York: Harper & Row. 1971.