000			00578nam a2200181 a 4500
020			_a0412469901
020			_a0412470004 (pbk.)
050	0	0	_aHC79.E5
245	0	4	_aThe World environment 1972-1992 : _btwo decades of challenge /
250			_a1st ed.
260			_aLondon ; _aNew York : _bPublished by Chapman & Hall on behalf of the United Nations Environment Programme, _c1992.
300			_axi, 884 p. : _bill., maps ;
650		0	_aEnvironmental policy.
650		0	_aEnvironmental protection.
700	1		_aTolba, Mostafa Kamal.
700	2		_aEl-Kholy, O. A.
942			_cBK
999			_c899 _d899