APA ציטוט

G.Concone. Fifty lessons for the voice. New Yort: G.Schirmer, Inc.

Trích dẫn kiểu Chicago

G.Concone. Fifty Lessons for the Voice. New Yort: G.Schirmer, Inc.

ציטוט MLA

G.Concone. Fifty Lessons for the Voice. New Yort: G.Schirmer, Inc.