APA

Van Dersal W. R., . (1968). The successful supervisor in government and business. New York: Harper & Row.

Chicago

Van Dersal William Richard, . 1968. The successful supervisor in government and business. New York: Harper & Row.

Harvard

Van Dersal W. R., . (1968). The successful supervisor in government and business. New York: Harper & Row.

MLA

Van Dersal William Richard, . The successful supervisor in government and business. New York: Harper & Row. 1968.