000 01229nam a2200301Ia 4500
001 20240
003 BIBL
005 20160527193416.0
008 690513r1969 pauab b 00000 eng
010 _a 68026200 //r86
049 _aEVLG
_b339.4973
_bP415
_cc1
050 0 _aS942
_b.P45 1969
082 _a333.7/2/0973
092 _a339.4973
_bP415
110 2 0 _aUniversity of Pennsylvania.
_bBicentennial Conference.
_2Local
_9183289
245 1 0 _aConservation of renewable natural resources
_bsome fundamental aspects of the problem
_cby Raphael Zon [and others]
260 0 _aPort Washington
_bKennikat Press
_c[1969, c1941]
300 _avi, 200 p.
_billus., maps.
_c25 cm.
490 1 _aMorris Arboretum monographs, 2
_2Local
_9139059
490 0 _aEssay and general literature index reprint series
_2Local
_993149
504 _aIncludes bibliographies.
650 0 _aConservation of natural resources
_zUnited States.
_2Local
_979833
650 0 _aOzone
_xPhysiological effect.
_2Local
_9146410
650 0 _aBotany
_zUnited States.
_2Local
_964327
651 0 _aUnited States
_xClimate.
_2Local
_9182913
700 1 0 _aZon, Raphael
_d1874-1956.
_2Local
_9192181
810 1 _aPennsylvania.
_bUniversity.
_bMorris Arboretum.
_tMonographs
_v2
999 _c14661
_d14661