Shafer, R. (1926). American literature. Doubleday.
Cita Chicago Style (17a ed.)Shafer, Robert. American Literature. New York, Estados Unidos: Doubleday, 1926.
Cita MLA (9a ed.)Shafer, Robert. American Literature. Doubleday, 1926.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.