APA (7th ed.) Citation

Zirkel, G., & Berlinger, E. (1994). Understanding FORTRAN 77 and 90. PWS Pub. Co..

Chicago Style (17th ed.) Citation

Zirkel, Gene, and Eli Berlinger. Understanding FORTRAN 77 and 90. Boston: PWS Pub. Co., 1994.

MLA (9th ed.) Citation

Zirkel, Gene, and Eli Berlinger. Understanding FORTRAN 77 and 90. PWS Pub. Co., 1994.