01154nam a2200337 4500002002377MiAaHDL20111213000000.0m d cr bn ---auaua810109s1969 nyua b 101 0 eng 720863670127134506sdr-umn001958700(OCoLC)60956(MnSU)MNUX0060956-B(MnU)MNUG00060956-B(MnU-B)80856(MnU-B)MNUM80856-B(MnU)notisAAA5287MNDAQH540.E34 1968QH540.E34574.5The Ecosystem concept in natural resource management,edited by George M. Van Dyne.New York,Academic Press,1969.xii, 383 p.illus.24 cm."Based on a symposium held at the annual meeting of the American Society of Range Management in Albuquerque, New Mexico on February 12-15, 1968."Includes bibliographies.Mode of access: Internet.Conservation of natural resourcesCongresses.EcologyCongresses.Van Dyne, George M.,1932-ed.American Society of Range Management.00200237720100105095303.020111213000000.020120815122756.02026-02-09T18:49:17Z2026-02-09T18:30:03ZSDR-UMNUNKNOWNloader.pl-001-001BKsdr-umn001958700umnSDRUMNumn.31951000464189jUMN001958700UMNUMN20260209googleumn.31951000464189j1969icbibUS bib date1 >= 1931UMNUMN20260209googleumn.3195100000951411969icbibUS bib date1 >= 1931