Citazione Stile APA (7a Edizione)

Erwin, J. (2007). New Directions for Strings: A comprehensive string method / Joanne Erwin. FJH Music Co..

Citazione stile Chigago Style (17a edizione)

Erwin, Joanne. New Directions for Strings: A Comprehensive String Method / Joanne Erwin. Fort Lauderdale, Fla.: FJH Music Co., 2007.

Citatione MLA (8a ed.)

Erwin, Joanne. New Directions for Strings: A Comprehensive String Method / Joanne Erwin. FJH Music Co., 2007.