Citazione Stile APA (7a Edizione)

Spencer, J. A. (1858). History of the United States: From the earliest period to the present time. Johnson, Fry and Company.

Citazione stile Chigago Style (17a edizione)

Spencer, J. A. History of the United States: From the Earliest Period to the Present Time. New York, USA: Johnson, Fry and Company, 1858.

Citatione MLA (9a ed.)

Spencer, J. A. History of the United States: From the Earliest Period to the Present Time. Johnson, Fry and Company, 1858.