APA (7th ed.) Citation

Gernsheim, H. (1969). Lewis Carroll: Photograper. Dover Publications.

Chicago Style (17th ed.) Citation

Gernsheim, Helmut. Lewis Carroll: Photograper. Nueva York: Dover Publications, 1969.

MLA (9th ed.) Citation

Gernsheim, Helmut. Lewis Carroll: Photograper. Dover Publications, 1969.