APA (7th ed.) Citation

Evans, R. (1989). How to play keyboards. Elm Tree Books.

Chicago Style (17th ed.) Citation

Evans, Roger. How to Play Keyboards. London: Elm Tree Books, 1989.

MLA (9th ed.) Citation

Evans, Roger. How to Play Keyboards. Elm Tree Books, 1989.

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