Citazione Stile APA (7a Edizione)

Guerber, H. A. d. 1. (1895). Stories of the Wagner opera. Dodd, Mead and company.

Citazione stile Chigago Style (17a edizione)

Guerber, Helene Adeline d. 1929. Stories of the Wagner Opera. New York: Dodd, Mead and company, 1895.

Citatione MLA (9a ed.)

Guerber, Helene Adeline d. 1929. Stories of the Wagner Opera. Dodd, Mead and company, 1895.