APA (7th ed.) Citation

Sumner, W. L. (1966). The pianoforte / by W.L. Sumner. Macdonald.

Chicago Style (17th ed.) Citation

Sumner, W. L. The Pianoforte / by W.L. Sumner. Macdonald, 1966.

MLA (9th ed.) Citation

Sumner, W. L. The Pianoforte / by W.L. Sumner. Macdonald, 1966.

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