TY  - BOOK
AU  - Leyden,Michael B.
TI  - Introduction to physical science
SN  - 0070521409 :
U1  - 500.2 
PY  - 1988///
CY  - New York
PB  - Addison-Wesley
KW  - PHYSICAL SCIENCES
KW  - CIENCIAS BASICAS
ER  -