APA

Porter J., Cahn L., . (1981). San Francisco, the cool, gray city of love. New York: E.P. Dutton.

Chicago

Porter Jean, Cahn Leonard, . 1981. San Francisco, the cool, gray city of love. New York: E.P. Dutton.

Harvard

Porter J., Cahn L., . (1981). San Francisco, the cool, gray city of love. New York: E.P. Dutton.

MLA

Porter Jean, Cahn Leonard, . San Francisco, the cool, gray city of love. New York: E.P. Dutton. 1981.