TY - BOOK ID - 130255122 TI - Economics of natural and environmental resources PY - 1977 SN - 0677150407 9780677150406 PB - New York (N.Y.): Gordon and Breach, DB - UniCat KW - Natural resources UR - https://www.unicat.be/uniCat?func=search&query=sysid:130255122 AB - ER -