APA (7th ed.) Citation

TOPPER, G. (1973). A Duet Approach To The Guitar. Broekmans & Van Poppel.

Chicago Style (17th ed.) Citation

TOPPER, Guido. A Duet Approach To The Guitar. Broekmans & Van Poppel, 1973.

MLA (8th ed.) Citation

TOPPER, Guido. A Duet Approach To The Guitar. Broekmans & Van Poppel, 1973.

Warning: These citations may not always be 100% accurate.