APA (7th ed.) Citation

Knittel, J. (1927). Into the abyss. Heinemann.

Chicago Style (17th ed.) Citation

Knittel, John. Into the Abyss. London: Heinemann, 1927.

MLA (8th ed.) Citation

Knittel, John. Into the Abyss. Heinemann, 1927.

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