APA

Walsh J. J., . (1914). The century of Columbus. New York: Catholic summer school press.

Chicago

Walsh James Joseph, . 1914. The century of Columbus. New York: Catholic summer school press.

Harvard

Walsh J. J., . (1914). The century of Columbus. New York: Catholic summer school press.

MLA

Walsh James Joseph, . The century of Columbus. New York: Catholic summer school press. 1914.