TY  - BOOK
ED  - Carnegie Library of Pittsburgh.
TI  - Science and technology desk reference: 1, 500 answers to frequently-asked or difficult-to-answer questions 
SN  - 0810388847
U1  - 500 
PY  - 1993///
CY  - Washington, D.C.
PB  - Gale Research
KW  - Science
KW  - Miscellanea
KW  - Technology
N1  - Includes bibliographical references (p. 639-666) and index
ER  -