Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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