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Displaying items 1 - 2 of 2
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1. Historical maps of land use in Puerto Rico in 1951 Data publication contains GIS data

Author(s):
Helmer, Eileen H.; Córdova, Juan R.; Quiñones, Maya; Hubing, Nick

2. University of Pennsylvania campus tree inventories, 2003 and 2014

Author(s):
Roman, Lara A.; Fristensky, Jason P.; Lundgren, Robert E.; Cerwinka, Chloe E.; Lubar, Jason E.