Citazione Stile APA (7a Edizione)

Ritchie, D. A., Althoff, M., & Wilson, R. (1985). Heritage of freedom: History of the United States. Scribner Educational Publ.

Citazione stile Chigago Style (17a edizione)

Ritchie, Donald A., Margaret Althoff, e Richard Wilson. Heritage of Freedom: History of the United States. New York [u.a.]: Scribner Educational Publ, 1985.

Citatione MLA (9a ed.)

Ritchie, Donald A., et al. Heritage of Freedom: History of the United States. Scribner Educational Publ, 1985.