Archives d'Etat. Base de données Adhémar. Fonds Gustave Dumur, ingénieur. https://ge.ch/arvaegconsult/ws/consaeg/public/oca/Record?upp=0&rpp=50&m=1&w=NATIVE%28%27NMOCA+ph+any+%27%27Dumur%27%27+or+MCCOM+ph+any+%27%27Dumur%27%27+or+MCLIEU+ph+any+%27%27Dumur%27%27+or+MCNOM+ph+any+%27%27Dumur%27%27%27%29&r=1&order=NATIVE%28%27NMOCA%27%29&type=FONDS&action=-1