Needle, D. (2009). Business in context: An introduction to business and its environment (Cuarta edición.). South-Western. Cengage Learning.
Цитирование в стиле Чикаго (17-е изд.)Needle, David. Business in Context: An Introduction to Business and Its Environment. Cuarta edición. Londres: South-Western. Cengage Learning, 2009.
Цитирование MLA (8-е изд.)Needle, David. Business in Context: An Introduction to Business and Its Environment. Cuarta edición. South-Western. Cengage Learning, 2009.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.