Cita APA

Zelko, H. P. (1957). Successful Conference and Discussion Techniques. New York: McGraw-Hill Book Co..

Chicago Style Citation

Zelko, Harold P. Successful Conference and Discussion Techniques. New York: McGraw-Hill Book Co., 1957.

Cita MLA

Zelko, Harold P. Successful Conference and Discussion Techniques. New York: McGraw-Hill Book Co., 1957.