APA (7th ed.) Citation

Hughes, J. K. (1973). PL 1 programming (4. print.). Wiley.

Chicago Style (17th ed.) Citation

Hughes, Joan K. PL 1 Programming. 4. print. New York [u.a.]: Wiley, 1973.

MLA (9th ed.) Citation

Hughes, Joan K. PL 1 Programming. 4. print. Wiley, 1973.

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