APA citiranje

Perkins, G. B., & Perkins, B. (1999). The American tradition in literature. Boston, Mass: McGraw-Hill.

Trích dẫn kiểu Chicago

Perkins, George B., và Barbara Perkins. The American Tradition in Literature. Boston, Mass: McGraw-Hill, 1999.

MLA citiranje

Perkins, George B., và Barbara Perkins. The American Tradition in Literature. Boston, Mass: McGraw-Hill, 1999.