APA

Summer C. E., . (1956). Factors in effective administration. [New York]: Graduate School of Business, Columbia University.

Chicago

Summer Charles Edgar, . 1956. Factors in effective administration. [New York]: Graduate School of Business, Columbia University.

Harvard

Summer C. E., . (1956). Factors in effective administration. [New York]: Graduate School of Business, Columbia University.

MLA

Summer Charles Edgar, . Factors in effective administration. [New York]: Graduate School of Business, Columbia University. 1956.