TY  - BOOK
AU  - Boulanger, F. David
AU  - Smith, John P.
AU  - Street, Harold W., ill.
TI  - Educational principles and techniques for interpreters
U1  - 370.15 21st ed.
PY  - 1973///
CY  - Oregon
PB  - Pacific Northwest Forest and Range Experiment Station, Forest Service, Department of Agriculture, Government of U.S
KW  - Educational psychology
KW  - Natural history
KW  - Recreation
N1  - p 24
ER  -