Reforesting Pennsylvania's waste land Conklin, William Gardiner, 1886- creator text book Harrisburg, Pa W.S. Ray, state printer 1916 1916
print
ENG Afforestation Forests and forestry Pennsylvania Reforestation SD12 .P33 no. 15 https://www.biodiversitylibrary.org/bibliography/57570 agr17000358 10.5962/bhl.title.57570 DLC