Стиль цитування APA (7-ме видання)

Rugg, H. (1929). An introduction to American civilization: A study of economic life in the United States. Ginn and Company.

Чикаго стиль цитування (17-те видання)

Rugg, Harold. An Introduction to American Civilization: A Study of Economic Life in the United States. Boston: Ginn and Company, 1929.

Стиль цитування MLA (9-ме видання)

Rugg, Harold. An Introduction to American Civilization: A Study of Economic Life in the United States. Ginn and Company, 1929.