APA

Thompson W. M., . (1968). The basics of successful salesmanship: a self-teaching programed book. New York: McGraw-Hill.

Chicago

Thompson Willard Mead, . 1968. The basics of successful salesmanship: a self-teaching programed book. New York: McGraw-Hill.

Harvard

Thompson W. M., . (1968). The basics of successful salesmanship: a self-teaching programed book. New York: McGraw-Hill.

MLA

Thompson Willard Mead, . The basics of successful salesmanship: a self-teaching programed book. New York: McGraw-Hill. 1968.