Cita APA

(1971). Webster's guide to American history. Massachusetts: G and C Merriam.

Chicago Style Citation

Webster's Guide to American History. Massachusetts: G and C Merriam, 1971.

Cita MLA

Webster's Guide to American History. Massachusetts: G and C Merriam, 1971.

Atenció: Aquestes cites poden no estar 100% correctes.