APA

Bassett J. S., . (1917). The middle group of American historians. New York: The Macmillan Company.

Chicago

Bassett John Spencer, . 1917. The middle group of American historians. New York: The Macmillan Company.

Harvard

Bassett J. S., . (1917). The middle group of American historians. New York: The Macmillan Company.

MLA

Bassett John Spencer, . The middle group of American historians. New York: The Macmillan Company. 1917.