APA (7th ed.) Citation

Sherard, W. H. (1987). Logic number problems: [grades 7 - 12]. Seymour.

Chicago Style (17th ed.) Citation

Sherard, Wade H. Logic Number Problems: [grades 7 - 12]. Palo Alto, CA: Seymour, 1987.

MLA (9th ed.) Citation

Sherard, Wade H. Logic Number Problems: [grades 7 - 12]. Seymour, 1987.