"North America." . . . . "Trees." . . "Arbres Amérique du Nord." . . "Trees North America." . . . . "Guidebooks"@en . . . "Guidebooks" . . . "How to know the trees; an illustrated key to the most common species of trees found east of the Rocky Mountains, with suggestions and aids for their study"@en . . . "How to know the trees : an illustrated key to the most common species of trees found east of the Rocky mountains, with suggestions and aids for their study" . . "How to know the trees : an illustrated key to the most common species of trees found east of the Rocky Mountains, with suggestions and aids for their study"@en . . . . "How to know the trees : an illustrated key to he most common species of trees found east of the Rocky mountains, with suggestions and aids for their study" . . . "How to know the trees; all illustrated key to the most common species of trees found east of the Rocky mountains, with suggestions and aids for their study"@en . "How to know the trees an illustrated key to the most common species of trees found east of the Rocky Mountains, with suggestions and aids for their study"@en . "How to know the trees : an illustrated key to the most common species of trees found east of the Rocky Mountains with suggestions and aids for their study"@en . . "How to know the trees an illustrated key to the most common species of trees found east of the Rocky mountains, with suggestions and aids for their study"@en . . . . . . . "How to know the trees; an illustrated key to the most common species of trees found east of the Rocky mountains, with suggestions and aids for their study" . "How to know the trees; an illustrated key to the most common species of trees found east of the Rocky mountains, with suggestions and aids for their study"@en . . . . . . . . . . . "How to know the trees" . "How to know the trees"@en . . . . . "Phytogéographie." . .