Research centers directory /
edited by Karen Hill.
- 15th ed.
- New York : Gale research, c 1990.
- vols. ; 29 cm.
V. 1- (sections 1-7) : (entries 1-7935) ;
333 333
0-81030-7351-3
Encyclopedia of science.
061.025 / R233
V. 1- (sections 1-7) : (entries 1-7935) ;
333 333
0-81030-7351-3
Encyclopedia of science.
061.025 / R233