APA (7th ed.) Citation

(1990). Keyboard companion: A practical magazine on early-level piano study. Keyboard Companion.

Chicago Style (17th ed.) Citation

Keyboard Companion: A Practical Magazine on Early-level Piano Study. Los Angeles, CA: Keyboard Companion, 1990.

MLA (9th ed.) Citation

Keyboard Companion: A Practical Magazine on Early-level Piano Study. Keyboard Companion, 1990.

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