XIX congress...Helsinki, June 10-19 1990: (Volume 10: supplementary volume of papers).
XIX congress...Helsinki, June 10-19 1990: (Volume 10: supplementary volume of papers).
- Helsinki FIG 1990
- 336p. ; 21cm.
9519609733
CONFERENCES
SURVEYORS
526.9
9519609733
CONFERENCES
SURVEYORS
526.9