APA (7th ed.) Citation

Collins, H. P. (1966). John Cowper Powys: Old earth-man. Barrie and Rockliff.

Chicago Style (17th ed.) Citation

Collins, H. P. John Cowper Powys: Old Earth-man. London: Barrie and Rockliff, 1966.

MLA (9th ed.) Citation

Collins, H. P. John Cowper Powys: Old Earth-man. Barrie and Rockliff, 1966.