Gaya APA

Messmore, J, A. (1982). Terrain analysis procedural guide for drainage and water resources: report no. 8 in the etl series on guides for army terrain analysts . Virginia: Army Engineer Topographic Laboratories.

Gaya MLA

Messmore, Jeffrey, A.. "Terrain analysis procedural guide for drainage and water resources: report no. 8 in the etl series on guides for army terrain analysts". Virginia: Army Engineer Topographic Laboratories, 1982. Text.