APA Citation

Ruge, C. (1906). The Tonal school of America. International studio, 27(1), pp. 57-68.

Chicago Style Citation

Ruge, Clara. "The Tonal School of America." International Studio 27, no. 1 (1906): 57-68.

MLA Citation

Ruge, Clara. "The Tonal School of America." International Studio 27.1 (1906): 57-68.

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