APA (7th ed.) Citation

Martin, M. V. (1989). GRASS/GIS implementation guide. US Army Corps of Engineers, Construction Engineering Research Laboratory.

Chicago Style (17th ed.) Citation

Martin, Mary V. GRASS/GIS Implementation Guide. Champaign, IL: US Army Corps of Engineers, Construction Engineering Research Laboratory, 1989.

MLA (9th ed.) Citation

Martin, Mary V. GRASS/GIS Implementation Guide. US Army Corps of Engineers, Construction Engineering Research Laboratory, 1989.