RUSSEL, F. A., BEACH, F. H., & BUSKIRK, R. H. (1978). Textbook of salesmanship. McGraw-Hill.

RUSSEL, Frederic A., Frank H. BEACH, and Richard H. BUSKIRK. Textbook of Salesmanship. New York: McGraw-Hill, 1978.

RUSSEL, Frederic A., et al. Textbook of Salesmanship. McGraw-Hill, 1978.