APA (7th ed.) Citation

Spooner, G. (1962). Mathematics enrichment: Sets (discovery ed.). Harcourt.

Chicago Style (17th ed.) Citation

Spooner, George. Mathematics Enrichment: Sets. discovery ed. New York: Harcourt, 1962.

MLA (9th ed.) Citation

Spooner, George. Mathematics Enrichment: Sets. discovery ed. Harcourt, 1962.

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