APA

Richards P. W., . (1970). The life of the jungle. New York: McGraw-Hill.

Chicago

Richards Paul W, . 1970. The life of the jungle. New York: McGraw-Hill.

Harvard

Richards P. W., . (1970). The life of the jungle. New York: McGraw-Hill.

MLA

Richards Paul W, . The life of the jungle. New York: McGraw-Hill. 1970.