1
by Spence, Mark David
Published 2000
Oxford University Press
Subjects: ...Nature conservation / Social aspects / United States...

2
by Thomas, Craig W.
Published 2003
MIT Press
Subjects: ...Biodiversity conservation / Government policy / United States / Case studies...

3
by Newton, Lisa
Published 2013
Springer International Publishing
...This book tracks the growth of environmental awareness and conservation in the United States...