M., H., W.(1991).Textbook of dendrology : covering the important forest trees of the united states and canada / William M. Harlow. dkk (Ed.ke-7).:Mc Graw-Hill.
Gaya MLA
Harlow, William, M.."Textbook of dendrology : covering the important forest trees of the united states and canada / William M. Harlow. dkk".Ed.ke-7:Mc Graw-Hill,1991.Textbook.