APA

National Business Education Association, Brendel L. A. & Yengel H. (1972). Changing methods of teaching business subjects: Editors: Leroy Brendel [and] Herbert Yengel. Washington: National Business Education Association.

Chicago

National Business Education Association, Brendel Leroy A and Yengel Herbert. 1972. Changing methods of teaching business subjects: Editors: Leroy Brendel [and] Herbert Yengel. Washington: National Business Education Association.

Harvard

National Business Education Association, Brendel L. A. and Yengel H. (1972). Changing methods of teaching business subjects: Editors: Leroy Brendel [and] Herbert Yengel. Washington: National Business Education Association.

MLA

National Business Education Association, Brendel Leroy A and Yengel Herbert. Changing methods of teaching business subjects: Editors: Leroy Brendel [and] Herbert Yengel. Washington: National Business Education Association. 1972.