Citazione Stile APA (7a Edizione)

Spreckelmeyer, R. (1964). The real numbers. D. C. Heat and Company.

Citazione stile Chigago Style (17a edizione)

Spreckelmeyer, Richard. The Real Numbers. Boston: D. C. Heat and Company, 1964.

Citatione MLA (9a ed.)

Spreckelmeyer, Richard. The Real Numbers. D. C. Heat and Company, 1964.