APA (7th ed.) Citation

Friml, R., & Rowley, A. (1932). 60 graded pieces for piano. Schott & Co., Ltd.

Chicago Style (17th ed.) Citation

Friml, Rudolf, and Alec Rowley. 60 Graded Pieces for Piano. London: Schott & Co., Ltd, 1932.

MLA (9th ed.) Citation

Friml, Rudolf, and Alec Rowley. 60 Graded Pieces for Piano. Schott & Co., Ltd, 1932.

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