Citazione Stile APA (7a Edizione)

London Printing and Publishing Company, Salmon, J., Fisher, S., & Rapkin, J. (1850). Prussia. [The London Printing and Publishing Company].

Citazione stile Chigago Style (17a edizione)

London Printing and Publishing Company, John Salmon, S. Fisher, e John Rapkin. Prussia. [London]: [The London Printing and Publishing Company], 1850.

Citatione MLA (9a ed.)

London Printing and Publishing Company, et al. Prussia. [The London Printing and Publishing Company], 1850.