A princess of Mars.

MLA

Burroughs, Edgar Rice and Joel Rothberg. A princess of Mars. [New York : Pratt Adlib Press, 1965]

APA

Burroughs, E. & Rothberg, J. (1965). A princess of Mars. [New York : Pratt Adlib Press.

Chicago

Burroughs, Edgar Rice and Joel Rothberg. A princess of Mars. [New York : Pratt Adlib Press, 1965]