
Volunteer service and mechanism in the U.S. national parks: A case study of Channel Islands National Park
Hui WANG, Xiaoyu LIU, Jianke GUO, Caizhi SUN
GEOGRAPHICAL RESEARCH ›› 2016, Vol. 35 ›› Issue (6) : 1193-1202.
Volunteer service and mechanism in the U.S. national parks: A case study of Channel Islands National Park
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