APA (7th ed.) Citation

Barnard, D. S. P. (1962). A book of mathematical and reasoning problems. D. Van Nostrand.

Chicago Style (17th ed.) Citation

Barnard, D. St. P. A Book of Mathematical and Reasoning Problems. Princeton: D. Van Nostrand, 1962.

MLA (9th ed.) Citation

Barnard, D. St. P. A Book of Mathematical and Reasoning Problems. D. Van Nostrand, 1962.