APA

Fagan B. M., . (1991). In the Beginning. New York: Harper collins.

Chicago

Fagan Brian M, . 1991. In the Beginning. New York: Harper collins.

Harvard

Fagan B. M., . (1991). In the Beginning. New York: Harper collins.

MLA

Fagan Brian M, . In the Beginning. New York: Harper collins. 1991.