TY  - BOOK
AU  - Becker,David George,1946-
TI  - Proxemics and recreational spatial behavior in Yellowatone National Park campground
PY  - 1978///
CY  - Ann Arbor, Mich.
PB  - University Microfilms International
KW  - Outdoor recreation
KW  - United States
N1  - Thesis (Ph.D.)-University of Illinois at Urban-Champaign, 1977
ER  -