Citations are generated automatically from bibliographic data as
a convenience, and may not be complete or accurate.
Chicago citation style:
United States Soil Conservation Service, and U.S National Cartographic Center. Pennsylvania, Warm Season Grasses Perennials: Plant Hardiness Zones. [Ft. Worth, TX: USDA-SCS-National Cartographic Center ; Harrisburg, Pa.: State Conservationist, distributor, 1992] Map. https://www.loc.gov/item/93683868/.
APA citation style:
United States Soil Conservation Service & National Cartographic Center, U. S. (1992) Pennsylvania, Warm Season Grasses Perennials: Plant Hardiness Zones. [Ft. Worth, TX: USDA-SCS-National Cartographic Center ; Harrisburg, Pa.: State Conservationist, distributor] [Map] Retrieved from the Library of Congress, https://www.loc.gov/item/93683868/.
MLA citation style:
United States Soil Conservation Service, and U.S National Cartographic Center. Pennsylvania, Warm Season Grasses Perennials: Plant Hardiness Zones. [Ft. Worth, TX: USDA-SCS-National Cartographic Center ; Harrisburg, Pa.: State Conservationist, distributor, 1992] Map. Retrieved from the Library of Congress, <www.loc.gov/item/93683868/>.