APA (7th ed.) Citation

Intel. (1990). i489 microprocessor Programmer's reference manual. McGraw-Hill.

Chicago Style (17th ed.) Citation

Intel. I489 Microprocessor Programmer's Reference Manual. New York: McGraw-Hill, 1990.

MLA (9th ed.) Citation

Intel. I489 Microprocessor Programmer's Reference Manual. McGraw-Hill, 1990.