TY  - BOOK
ED  - E.U.A. National Agricultural Library
TI  - Lockheed retrieval services file description
PY  - 1970///?]
CY  - Beltsville, MD
PB  - National Agricultural Library
KW  - Agricultura
KW  - Servicios de información
KW  - Sistemas de información
N1  - Fotocopia
ER  -