WoodbookRomeyn Beck Hough, Klaus Ulrich Leistikow, Holger Thus, Sargent, Charles Sprague · First published 2007Open the Tome
Leaf key to the trees of the northern states and Canada, and a botanical glossaryRomeyn Beck Hough · First published 1929Open the Tome
Handbook of the trees of the northern states and CanadaRomeyn Beck Hough · First published 1924Open the Tome
Leaf key to the trees of the northern states and CanadaRomeyn Beck Hough · First published 1910Open the Tome
Handbook of the trees of the northern states and Canada east of the Rocky mountainsRomeyn Beck Hough · First published 1907Open the Tome
