APA (7th ed.) Citation

Heaton, E. W. (1961). The Old Testament Prophets. Penguin Books.

Chicago Style (17th ed.) Citation

Heaton, E. W. The Old Testament Prophets. Harmondsworth [etc.]: Penguin Books, 1961.

MLA (9th ed.) Citation

Heaton, E. W. The Old Testament Prophets. Penguin Books, 1961.

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