APA (7th ed.) Citation

Whitlow, S. H. (1973). FOCAL on the PDP-9 computer. Inland Waters Directorate, Water Resources Branch.

Chicago Style (17th ed.) Citation

Whitlow, S. H. FOCAL on the PDP-9 Computer. Ottawa: Inland Waters Directorate, Water Resources Branch, 1973.

MLA (9th ed.) Citation

Whitlow, S. H. FOCAL on the PDP-9 Computer. Inland Waters Directorate, Water Resources Branch, 1973.

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