Ruiz, M. S., & Messersmith, J. M. (1990). Cartographic issues in the development of a digital GRASS database. US Army Corps of Engineers, Construction Engineering Research Laboratory.
Chicago Style (17th ed.) CitationRuiz, Marilyn S., and Jean M. Messersmith. Cartographic Issues in the Development of a Digital GRASS Database. Champaign, Illinois: US Army Corps of Engineers, Construction Engineering Research Laboratory, 1990.
MLA (9th ed.) CitationRuiz, Marilyn S., and Jean M. Messersmith. Cartographic Issues in the Development of a Digital GRASS Database. US Army Corps of Engineers, Construction Engineering Research Laboratory, 1990.
Warning: These citations may not always be 100% accurate.