TY  - BOOK
AU  - World Book
TI  - 1991 Science Year: The World Book Annual Science Supplement: a review of Science and Technology during the 1990 School Year
SN  - 0-7166-0591-0
U1  - 030/WOR/S 
KW  - The 1991 Major Science Stories - articles
N1  - 2734; The 1991 Major Science Stories - articles
ER  -