Seltsam, W. H., & Robinson, F. (1968). Metropolitan opera annals: Second supplement : 1957-1966 : a chronicle of artists and performances. H.W. Wilson.
Čikaški stil citiranja (17. izdanje)Seltsam, William H., i Francis Robinson. Metropolitan Opera Annals: Second Supplement : 1957-1966 : A Chronicle of Artists and Performances. New York: H.W. Wilson, 1968.
MLA način citiranja (9. izdanje)Seltsam, William H., i Francis Robinson. Metropolitan Opera Annals: Second Supplement : 1957-1966 : A Chronicle of Artists and Performances. H.W. Wilson, 1968.
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