TY  - BOOK
TI  - Directory of technical and scientific directories: a world bibliographic guide to medical, agricultural, industrial, and natural science directories
SN  - 0582044294
U1  - R 016.5025 21st ed.
PY  - 1989///
CY  - Arizona
PB  - The Oryx Press
KW  - Directories
KW  - Science-Bibliography
KW  - Technology-Bibliography
ER  -