APA

Sparrow J. H. A., . (1966). Controversial essays. New York: Chilmark Press.

Chicago

Sparrow John Hanbury Angus, . 1966. Controversial essays. New York: Chilmark Press.

Harvard

Sparrow J. H. A., . (1966). Controversial essays. New York: Chilmark Press.

MLA

Sparrow John Hanbury Angus, . Controversial essays. New York: Chilmark Press. 1966.