TY  - BOOK
TI  - Van Nostrand's scientific encyclopedia: aeronautics, astronomy, botany, chemistry, engineering, geology, mathematics, medicine, mineralogy, navigation, physics, zoology
AV  - Q121 .V3
U1  - 503 
PY  - 1938///]
CY  - New York
PB  - D. Van Nostrand company, inc.
KW  - Science
KW  - Dictionaries
ER  -