APA (7th ed.) Citation

Alger, H., Jr. (1909). Jack's Ward, or, The boy guardian. New York Book Co..

Chicago Style (17th ed.) Citation

Alger, Horatio, Jr. Jack's Ward, or, The Boy Guardian. New York: New York Book Co., 1909.

MLA (9th ed.) Citation

Alger, Horatio, Jr. Jack's Ward, or, The Boy Guardian. New York Book Co., 1909.