http://www.vocabularyserver.com/gemet/pt/http://www.vocabularyserver.com/gemet/pt/xml.php?skosTema=1561bactérias coliformes http://www.vocabularyserver.com/gemet/pt/xml.php?skosTema=1561 bactérias BT http://www.vocabularyserver.com/gemet/pt/xml.php?skosTema=1561 salmonelas NT