Henry Gerhold books & textbook
A Forester's Legacy: The Life of Joseph E. Ibberson
Stackpole Books /2007-03-09 Hardcover / 208 Pages
isbn-10: 0811733904 / isbn-13: 9780811733908
Street Tree Factsheets (Agrs Series; No 56) by Henry D. Gerhold (1993-07-04)
Pennsylvania State Univ / Mass Market Paperback
A Century of Forest Resources Education at Penn State: Serving Our Forests, Waters, Wildlife, and Wood Industries
Penn State University Press /2007-01-29 Hardcover / 264 Pages
isbn-10: 0271029641 / isbn-13: 9780271029641
Penn State Agriculture Magazine, Winter Spring 2006
Tracy Hoover Timothy Kelsey Peter Kaufman Gary Abdullah Krista Weidner Mark Guiltinan Nora Serotkin John Comerford Huaghuang Lu Erick DeWolf Doug Beegle Henry Gerhold John Carlson Majid Foolad Timothy McNellis Surinder Chopra Barbara Christ Chuck Gill Calvin Fills Siela Maximova Victor Velazquez Howard Neurnberger Miguel Saviroff Carlos Lopez Jeff Mulhollem Amanda Rudisill
Penn State University, College of Agriculture Sciences /2006T Single Issue Magazine / 39 Pages
SELECTION PRACTICES OF MUNICIPAL ARBORISTS
Gerhold, Henry D & Steiner, Kim C
From: Santamour, Frank S., et al, 1976, BETTER TREES FOR METROPOLITAN LANDSCAPES /1976T Pamphlet
SELECTION OF TREES FOR TOLERANCE OF AIR POLLUTANTS
Davis, Donald D & Gerhold, Henry D
From: Santamour, Frank S., et al, 1976, BETTER TREES FOR METROPOLITAN LANDSCAPES /1976T Pamphlet
Our heritage of community trees
Pennsylvania Urban & Community Forestry Council /2002T Unknown Binding / 73 Pages
Effect of air pollution on Pinus strobus L. and genetic resistance : a literature review / by Henry D. Gerhold. 1977 [Leather Bound]
Generic /2018-01-01 Leather Bound / 56 Pages
Breeding of Pest Resistant Trees
Pergamon Pr /1966T Hardcover / 516 Pages
isbn-10: 0080117643 / isbn-13: 9780080117645
