TY  - BOOK
A2  - Robert E. Manning and Laura E. Anderson.
A3  - Anderson, Laura E.
AU  - Manning, Robert E.
NV  - XIII, 243 s. :
PY  - 2012
SN  - 9781845939311(hbk:
SN  - 9781780641874
TI  - Managing outdoor recreation : case studies in the national parks /
ER  -