Sager, A. W. (1968). Speak your way to success: A guide to effective speaking in business and the professions. McGraw-Hill.
Цитирование в стиле Чикаго (17-е изд.)Sager, Arthur W. Speak Your Way to Success: A Guide to Effective Speaking in Business and the Professions. New York: McGraw-Hill, 1968.
Цитирование MLA (9-е изд.)Sager, Arthur W. Speak Your Way to Success: A Guide to Effective Speaking in Business and the Professions. McGraw-Hill, 1968.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.