Brown, P. M. (2010). Woodland & Bog Rein orchids in your pocket: A guide to native Platanthera species of the continental United States and Canada. University of Iowa Press.
Dyfyniad Arddull ChicagoBrown, Paul Martin. Woodland & Bog Rein Orchids in Your Pocket: A Guide to Native Platanthera Species of the Continental United States and Canada. [Iowa: University of Iowa Press, 2010.
Dyfyniad MLABrown, Paul Martin. Woodland & Bog Rein Orchids in Your Pocket: A Guide to Native Platanthera Species of the Continental United States and Canada. University of Iowa Press, 2010.
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