000			00458pam a2200157a 44500
008			160408b1972 xxu||||| |||| 00| 0 eng d
082			_a301.015 _bC85
100			_aCrane, Diana
245	1		_aINVISIBLE COLLEGES _cDIFFUSION OF KNOWLEDGE IN SCIENTIFIC COMMUNITIES
260			_aChicago _bUniversity Of Chicago Press _c1972
300			_a213
500			_aBibl. : P. 195 - 206
650			_aKnowledge, Sociology Of
964			_gCIRC
997			_aA22842 C
999			_c250889 _d250889