APA (7th ed.) Citation

Wunderlich, H. G., Winston, R., & Winston, C. (1974). The secret of Crete. Macmillan.

Chicago Style (17th ed.) Citation

Wunderlich, Hans Georg, Richard Winston, and Clara Winston. The Secret of Crete. New York: Macmillan, 1974.

MLA (8th ed.) Citation

Wunderlich, Hans Georg, et al. The Secret of Crete. Macmillan, 1974.