Cita APA (7a ed.)

Reynolds, J. J., & Lefferts, W. (1951). Old world origins of American civilization. Noble and Noble.

Cita Chicago Style (17a ed.)

Reynolds, James Joseph, y Walter Lefferts. Old World Origins of American Civilization. New York: Noble and Noble, 1951.

Cita MLA (8a ed.)

Reynolds, James Joseph, y Walter Lefferts. Old World Origins of American Civilization. Noble and Noble, 1951.