APA
(1990). Fielde Surveying for land and Water Management. Wangeningen: CTA.
Chicago
1990. Fielde Surveying for land and Water Management. Wangeningen: CTA.
Harvard
(1990). Fielde Surveying for land and Water Management. Wangeningen: CTA.
MLA
Fielde Surveying for land and Water Management. Wangeningen: CTA. 1990.