The Conference Called by the Governor of Pennsylvania to Consider Ways and Means for Preventing the Spread of the Chestnut Tree Bark Disease : the Capitol, Chamber of the House of Representatives, Harrisburg, Pennsylvania, February 20 and 21, 1912 : stenographic report of proceedings of the conference
Pennsylvania Chestnut Blight Conference (1912 : Harrisburg, Pa.); Pearson, Raymond Allen, 1873-1939; Pennsylvania. Chestnut Tree Blight Commission