APA

Bibby G., . (1974). The testimony of the spade. New York: Knopf.

Chicago

Bibby Geoffrey, . 1974. The testimony of the spade. New York: Knopf.

Harvard

Bibby G., . (1974). The testimony of the spade. New York: Knopf.

MLA

Bibby Geoffrey, . The testimony of the spade. New York: Knopf. 1974.