APA (7th ed.) Citation

Hobson, E. W., Hudson, H. P., Singh, A. N., & Kempe, A. B. (1969). Squaring the circle and other monographs. Chelsea.

Chicago Style (17th ed.) Citation

Hobson, Ernest William, H. P. Hudson, A. N. Singh, and A. B. Kempe. Squaring the Circle and Other Monographs. New York: Chelsea, 1969.

MLA (9th ed.) Citation

Hobson, Ernest William, et al. Squaring the Circle and Other Monographs. Chelsea, 1969.

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