TY  - BOOK
AU  - Grolier
ED  - Grolier Incorporated.
TI  - Encyclopedia of knowledge Vol 1 to 20
SN  - 0717253007 (set)
AV  - AE5 .E478 1991
U1  - 030 GRO 
PY  - 1991///
CY  - Danbury, Conn.
PB  - Grolier
KW  - Encyclopedias and dictionaries
KW  - Encyclopedia
N1  - Includes index. https://www.worldcat.org/title/grolier-encyclopedia-of-knowledge/oclc/671912249&referer=brief_results
ER  -