00715nas 2200253 450 00002279120090210134051.00008-510320090210b19261987km-y0itay50------baengCAaha----0---Canadian surveyorCanadian Institute of SurveyingOttawaCanadian Institute of Surveying and Mapping1926-1987fascicoliTrimestrale001000022792Scienze della TerraCanadian Institute of SurveyingITUNIPARTHENOPERICAUNIMARC0000227911986-1987DSACanadian surveyor1212022UNIPARTHENOPE