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Dinerstein, Eric ,  Bookbinder, Marnie P. ,  Graham, Douglas J. ,  Ledec, George ,  Olson, David M. ,  Primm, Steven A. ,  Webster, Avis L. ,  [A conservation assessment of the terrestrial ecorregions of Latin America and the Caribbean] ,  A conservation assessment of the terrestrial ecorregions of Latin America and the Caribbean

Little, Elbert Luther ,  Critchfield, William B. ,  [Subdivisions of the genus pine (pines)] ,  Subdivisions of the genus pine (pines)

Critchfield, William B. ,  [Geographic distribution of the pine of the world] ,  Geographic distribution of the pine of the world

Little, Elbert Luther ,  [Atlas of the United States trees. V.1: Conifers and important hardwoods] ,  Atlas of the United States trees. V.1: Conifers and important hardwoods

Little, Elbert Luther ,  Viereck, Leslie A. ,  [Atlas of the United States trees. V.2: Alaska trees and common shrubs] ,  Atlas of the United States trees. V.2: Alaska trees and common shrubs

Little, Elbert Luther ,  [Atlas of the United States trees. V.3: Minor western hardwoods] ,  Atlas of the United States trees. V.3: Minor western hardwoods