APA (7th ed.) Citation

Lawson, H. W. (1982). Understanding computer systems. Computer Science Press.

Chicago Style (17th ed.) Citation

Lawson, Harold W. Understanding Computer Systems. Rockville, MD: Computer Science Press, 1982.

MLA (9th ed.) Citation

Lawson, Harold W. Understanding Computer Systems. Computer Science Press, 1982.

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