Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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