APA (7th ed.) Citation

Sumner, W. L. (1938). Visual methods in education / by W.L. Sumner. Blackwell.

Chicago Style (17th ed.) Citation

Sumner, W. L. Visual Methods in Education / by W.L. Sumner. Blackwell, 1938.

MLA (9th ed.) Citation

Sumner, W. L. Visual Methods in Education / by W.L. Sumner. Blackwell, 1938.

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