Tohutoro APA (7th ed.)

Cooley, H. R., & Wahlert, H. E. (1968). Introducción to mathematics (2a. ed.). Houghton Mifflin Company.

Tohutoru Kātū Chicago (17th ed.)

Cooley, Hollis R., me Howard E. Wahlert. Introducción to Mathematics. 2a. ed. Boston: Houghton Mifflin Company, 1968.

Tohutoro MLA (9th ed.)

Cooley, Hollis R., me Howard E. Wahlert. Introducción to Mathematics. 2a. ed. Houghton Mifflin Company, 1968.