APA (7th ed.) Citation

Leavitt, W. G. (1968). A modern method for guitar. Berklee Press Pub.

Chicago Style (17th ed.) Citation

Leavitt, William G. A Modern Method for Guitar. [S.l.]: Berklee Press Pub, 1968.

MLA (9th ed.) Citation

Leavitt, William G. A Modern Method for Guitar. Berklee Press Pub, 1968.