APA (7th ed.) Citation

Mackail, D. G. (1931). The Square circle. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Mackail, Denis George. The Square Circle. Boston: Houghton Mifflin, 1931.

MLA (9th ed.) Citation

Mackail, Denis George. The Square Circle. Houghton Mifflin, 1931.

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