APA
Commonwealth Association of Surveying and Land Economy, . (1970). First general assembly [Georgetown, Guyana], 15 - 20 December 1969: report of proceedings. London: CASLE.
Chicago
Commonwealth Association of Surveying and Land Economy, . 1970. First general assembly [Georgetown, Guyana], 15 - 20 December 1969: report of proceedings. London: CASLE.
Harvard
Commonwealth Association of Surveying and Land Economy, . (1970). First general assembly [Georgetown, Guyana], 15 - 20 December 1969: report of proceedings. London: CASLE.
MLA
Commonwealth Association of Surveying and Land Economy, . First general assembly [Georgetown, Guyana], 15 - 20 December 1969: report of proceedings. London: CASLE. 1970.
