Cita APA (7a ed.)
Cohen, H. (1970). Landmarks of American writing. [s.n.].
Cita Chicago Style (17a ed.)
Cohen, Henning. Landmarks of American Writing. New York: [s.n.], 1970.
Cita MLA (9a ed.)
Cohen, Henning. Landmarks of American Writing. [s.n.], 1970.
Precaución: Estas citas no son 100% exactas.