APA (7th ed.) Citation

John, D. H. O. (1965). Photography on expeditions: Recommended techniques for difficult surroundings. Focal Press.

Chicago Style (17th ed.) Citation

John, David Hugh Oakley. Photography on Expeditions: Recommended Techniques for Difficult Surroundings. London, New York: Focal Press, 1965.

MLA (9th ed.) Citation

John, David Hugh Oakley. Photography on Expeditions: Recommended Techniques for Difficult Surroundings. Focal Press, 1965.