TY - BOOK ID - 125316404 TI - The earth, our physical environnment PY - 1973 PB - New York, NY : John Wiley, DB - UniCat KW - GENERALITES KW - SCIENCES DE LA TERRE UR - https://www.unicat.be/uniCat?func=search&query=sysid:125316404 AB - ER -