Цитирование APA (7-е изд.)
Guffey, M. E. (1998). Essentials of business communication (4th ed.). South-Western College Pub..
Цитирование в стиле Чикаго (17-е изд.)
Guffey, Mary Ellen. Essentials of Business Communication. 4th ed. Cincinnati, Ohio: South-Western College Pub., 1998.
Цитирование MLA (9-е изд.)
Guffey, Mary Ellen. Essentials of Business Communication. 4th ed. South-Western College Pub., 1998.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.