http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569surveying http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 exploring and investigating techniques BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 surveyors RT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 surveying instruments RT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 seismic reflection surveying NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 depth profiling NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 geological surveying NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 resistivity surveying NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 aerial surveying NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 magnetic surveying NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 underwater surveying NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 topographical surveying NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304569 surveyed UF