Cita APA (7th ed.)

London, K. R., & Gray, M. (1974). Documentation standards (Rev. ed.). Petrocelli Books.

Cita Chicago (17th ed.)

London, Keith R., i Max Gray. Documentation Standards. Rev. ed. New York: Petrocelli Books, 1974.

Cita MLA (8th ed.)

London, Keith R., i Max Gray. Documentation Standards. Rev. ed. Petrocelli Books, 1974.