TY  - BOOK
AU  - Ham,Sam H.
TI  - Environmental interpretation: a practical guide for people with big ideas and small budgets 
SN  - 1555919022 :
AV  - QH75 .H36 1992
U1  - 333.7/014 20
PY  - 1992///
CY  - Golden, Colo.
PB  - North American Press
KW  - Natural areas
KW  - Interpretive programs
KW  - Environmental education
KW  - National parks and reserves
N1  - Includes bibliographical references and index
UR  - http://www.loc.gov/catdir/enhancements/fy1006/92017212-b.html
UR  - http://www.loc.gov/catdir/enhancements/fy1102/92017212-d.html
ER  -