Cita APA (7th ed.)

QUINT, H. H. a. o. (1968). Main problems in American history. The Dorsey press.

Cita Chicago (17th ed.)

QUINT, Howard H. and others. Main Problems in American History. Homewood: The Dorsey press, 1968.

Cita MLA (9th ed.)

QUINT, Howard H. and others. Main Problems in American History. The Dorsey press, 1968.