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FACTORS AFFECTING SPECIES' RISK OF EXTINCTION: AN EMPIRICAL ANALYSIS OF ESA AND NATURESERVE LISTINGS
LABAND, DAVID N., (2006)
INDIVIDUAL SPECIES-STATE ANALYSIS OF NATURESERVE'S "AT-RISK" CATEGORIES: HUNTING AND FISHING'S ROLE
NIESWIADOMY, MICHAEL, (2009)
Individual species-state analysis of natureserve's "at-risk" categories : hunting and fishing's role
Nieswiadomy, Michael L., (2009)