APA

Smith P., . (1920). The age of the reformation. New York: H. Holt and Company.

Chicago

Smith Preserved, . 1920. The age of the reformation. New York: H. Holt and Company.

Harvard

Smith P., . (1920). The age of the reformation. New York: H. Holt and Company.

MLA

Smith Preserved, . The age of the reformation. New York: H. Holt and Company. 1920.