TY - BOOK ID - 885186 TI - Man and the ecosphere : readings from scientific american AU - Ehrlich, Paul R. AU - Holdren, John P. AU - Holm, Richard W. PY - 1971 SN - 0716709430 0716709422 9780716709435 9780716709428 PB - San Francisco: Freeman, DB - UniCat KW - Nature protection KW - Human ecology. Social biology KW - Human ecology KW - Collections UR - https://www.unicat.be/uniCat?func=search&query=sysid:885186 AB - ER -