APA (7th ed.) Citation
Edwards, L. E. (1973). PL/I for business applications. Reston Publ. Co.
Chicago Style (17th ed.) Citation
Edwards, Leonard E. PL/I for Business Applications. Reston: Reston Publ. Co, 1973.
MLA (9th ed.) Citation
Edwards, Leonard E. PL/I for Business Applications. Reston Publ. Co, 1973.
Warning: These citations may not always be 100% accurate.