APA (7. basım) Alıntı

Drooyan, I., & Hadel, W. (1964). A programmed introduction to number systems. Wiley.

Chicago Style (17. basım) Atıf

Drooyan, Irving, ve Walter Hadel. A Programmed Introduction to Number Systems. New York: Wiley, 1964.

MLA (9th ed.) Atıf

Drooyan, Irving, ve Walter Hadel. A Programmed Introduction to Number Systems. Wiley, 1964.