APA (7th ed.) Citation

Hartley, L. P. (1946). The sixth heaven. Putnam.

Chicago Style (17th ed.) Citation

Hartley, L. P. The Sixth Heaven. London: Putnam, 1946.

MLA (8th ed.) Citation

Hartley, L. P. The Sixth Heaven. Putnam, 1946.

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