Himstreet, W. C., & Baty, W. M. (1976). Programmed learning aid for business communications. Learning Systems Co.
Цитирование в стиле Чикаго (17-е изд.)Himstreet, William C., и Wayne Murlin Baty. Programmed Learning Aid for Business Communications. Homewood, Ill: Learning Systems Co, 1976.
Цитирование MLA (9-е изд.)Himstreet, William C., и Wayne Murlin Baty. Programmed Learning Aid for Business Communications. Learning Systems Co, 1976.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.