APA (7th ed.) Citation

Zirkel & Berlinger. (1994). Understanding FORTRAN 77 and 90: Reference guide. PWS Publishing Company.

Chicago Style (17th ed.) Citation

Zirkel and Berlinger. Understanding FORTRAN 77 and 90: Reference Guide. Boston: PWS Publishing Company, 1994.

MLA (9th ed.) Citation

Zirkel and Berlinger. Understanding FORTRAN 77 and 90: Reference Guide. PWS Publishing Company, 1994.

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