APA (7th ed.) Citation

Godson, R. H., Bracken, R. E., & Webring, M. (1988). PCCONTUR VERSION 1.0, a microcomputer general purpose contouring program. U.S. Department of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor].

Chicago Style (17th ed.) Citation

Godson, Richard H., Robert E. Bracken, and Michael Webring. PCCONTUR VERSION 1.0, a Microcomputer General Purpose Contouring Program. [Denver, Colo.?]: U.S. Department of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1988.

MLA (9th ed.) Citation

Godson, Richard H., et al. PCCONTUR VERSION 1.0, a Microcomputer General Purpose Contouring Program. U.S. Department of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1988.