Church, T. W., & Sucoff, E. (1960). Virginia pine seed viable two months before natural cone opening. Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station.
Chicago Style (17th ed.) CitationChurch, Thomas W., and Edward Sucoff. Virginia Pine Seed Viable Two Months Before Natural Cone Opening. Upper Darby, PA.: Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1960.
MLA (9th ed.) CitationChurch, Thomas W., and Edward Sucoff. Virginia Pine Seed Viable Two Months Before Natural Cone Opening. Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1960.
Warning: These citations may not always be 100% accurate.