TY  - BOOK
AU  - Comstock,Anna Botsford
AU  - Gordon,Eva L.
TI  - Handbook of nature-study
U1  - 574.07 
PY  - 1939/// [19th pri. 1963]
CY  - Ithaca, N.Y.
PB  - Comstock Publishing Company, inc.
KW  - Nature study
KW  - Bibliography
N1  - Bibliography, by Eva L. Gordon: p. [861]-908. and index
ER  -