APA (7th ed.) Citation

Deiss, L. (1979). The essential question. World Library Publications.

Chicago Style (17th ed.) Citation

Deiss, Lucien. The Essential Question. Chicago: World Library Publications, 1979.

MLA (8th ed.) Citation

Deiss, Lucien. The Essential Question. World Library Publications, 1979.

Warning: These citations may not always be 100% accurate.