APA
Geisler M., Royal Institution of Chartered Surveyors, . (1968). Errors in levelling due to obliquity of staves, "personal paper" for the Twelfth Congress of FIG (Commission 6) in London 1968. : RICS.
Chicago
Geisler M, Royal Institution of Chartered Surveyors, . 1968. Errors in levelling due to obliquity of staves, "personal paper" for the Twelfth Congress of FIG (Commission 6) in London 1968. : RICS.
Harvard
Geisler M., Royal Institution of Chartered Surveyors, . (1968). Errors in levelling due to obliquity of staves, "personal paper" for the Twelfth Congress of FIG (Commission 6) in London 1968. : RICS.
MLA
Geisler M, Royal Institution of Chartered Surveyors, . Errors in levelling due to obliquity of staves, "personal paper" for the Twelfth Congress of FIG (Commission 6) in London 1968. : RICS. 1968.
