APA

McCorkle P., . (1950). The physical world. New York: McGraw-Hill.

Chicago

McCorkle Paul, . 1950. The physical world. New York: McGraw-Hill.

Harvard

McCorkle P., . (1950). The physical world. New York: McGraw-Hill.

MLA

McCorkle Paul, . The physical world. New York: McGraw-Hill. 1950.