APA (7th ed.) Citation

Hughes, J. K. (1973). PL/I programming. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Hughes, Joan K. PL/I Programming. New York: John Wiley & Sons, 1973.

MLA (8th ed.) Citation

Hughes, Joan K. PL/I Programming. John Wiley & Sons, 1973.

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