great-plains

Evaluation of Ponderosa Pine Seed Sources for the Eastern Great Plains
Richard F. Kopp, Wayne A. Geyer, Robert M. Argent and Keith D. Lynch
- Arboriculture & Urban Forestry (AUF) May 1987, 13 (5) 139-144;
- DOI: https://doi.org/10.48044/jauf.1987.030