Propagation of forest trees having Commercial value and adapted to Pennsylvania

Ижил төстэй зүйлс

• Propagation of forest trees : having commsrcial value and adapted to Pennsylvania
  -н: Wirt, George H.
  Хэвлэсэн: (1902)
• Pennsylvania department of forestry.
  -н: Unknown
  Хэвлэсэн: (2023)
• Ferns and flowering plants of westmoreland country, Pennsylvania
  -н: Pearth, Dorothy L.
  Хэвлэсэн: (1975)
• The adaptive geometry of trees
  -н: Horn, Henry S.
  Хэвлэсэн: (1971)
• Report on the Pennsylvania Department of Forestry, for the years 1905 and 1906, together with suggestions concerning the present needs and the future policy of the department, and papers subjects connected with Pennsylvania forestry.
  Хэвлэсэн: (1907)