TY  - BOOK
AU  - Persing,Ellis C.
AU  - Peeples,Elizabeth K.
TI  - Elementary science by grades ..: a nature study and science reader,
T2  - Elementary science by grades
AV  - Q161 .P45
PY  - 1928///-30]
CY  - New York
PB  - D. Appleton and company
KW  - Science
KW  - Juvenile literature
KW  - Readers
N1  - "Edited by F. W. Ballou."; Books 2-6 have subtitle: A nature study and science reader
ER  -