Friends and friends of friends : With an introduction by John Leonard.

MLA

Wolff, Bernard Pierre, and John Leonard. Friends and Friends of Friends : With an Introduction by John Leonard. New York: E. P. Dutton, 1978.

APA

Wolff, B. Pierre, & Leonard, J. (1978). Friends and friends of friends : With an introduction by John Leonard. New York: E. P. Dutton.

Chicago

Wolff, Bernard Pierre, and John Leonard. Friends and Friends of Friends: With an Introduction by John Leonard. New York: E. P. Dutton, 1978.