APA (7th ed.) Citation

Obery, R. (1999). The Times history of the 20 th century. Saint Joseph's University.

Chicago Style (17th ed.) Citation

Obery, Richard. The Times History of the 20 Th Century. Saint Joseph's University, 1999.

MLA (8th ed.) Citation

Obery, Richard. The Times History of the 20 Th Century. Saint Joseph's University, 1999.