APA (7th ed.) Citation

Texas Instruments. (1980). Model 990 computer Fortran: Programmer's reference manual. Digital Systems Division.

Chicago Style (17th ed.) Citation

Texas Instruments. Model 990 Computer Fortran: Programmer's Reference Manual. Austin: Digital Systems Division, 1980.

MLA (9th ed.) Citation

Texas Instruments. Model 990 Computer Fortran: Programmer's Reference Manual. Digital Systems Division, 1980.