APA (7th ed.) Citation

Polivka, R. P., & Pakin, S. (1975). APL: The language and its usage (2. print.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Polivka, Raymond P., and Sandra Pakin. APL: The Language and Its Usage. 2. print. Englewood Cliffs, NJ: Prentice-Hall, 1975.

MLA (9th ed.) Citation

Polivka, Raymond P., and Sandra Pakin. APL: The Language and Its Usage. 2. print. Prentice-Hall, 1975.