TY  - BOOK
AU  - Obourn,Ellsworth S.
AU  - 
AU  - Montgromery, Gaylord C.
AU  - 
TI  - Investigating the world of science
U1  - 500 O129 1966 
PY  - 1966///
CY  - Princeton
PB  - D. Van Nostrand Company, Inc.
KW  - Science
N1  - Includes index
ER  -