TY  - BOOK
AU  - Gross,phyllis .
AU  - Railton ,Esther P.
TI  - Teaching science in an outdoors environment: Handbook for students parents,teachers,and camp leaders 
SN  - 0-520-02148-7
U1  - 500.9071 
PY  - 1972///
CY  - London
PB  - University of Califorilia
KW  - Natural history--Study and teaching (Elementary)
N1  - Includes bibliographical references and index
ER  -