Propagation of forest trees having Commercial value and adapted to Pennsylvania

Antzeko izenburuak

• Propagation of forest trees : having commsrcial value and adapted to Pennsylvania
  nork: Wirt, George H.
  Argitaratua: (1902)
• Pennsylvania department of forestry.
  nork: Unknown
  Argitaratua: (2023)
• Ferns and flowering plants of westmoreland country, Pennsylvania
  nork: Pearth, Dorothy L.
  Argitaratua: (1975)
• The adaptive geometry of trees
  nork: Horn, Henry S.
  Argitaratua: (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.
  Argitaratua: (1907)