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1958
Mark, A. F.. "The Ecology of the Southern Appalachian Grass Balds." Ecological Monographs 28, no. 4 (1958): 294-336.
Mark, A. F.. "The Flora of the Grass Balds and Fields of the Southern Appalachian Mountains." Castanea 24, no. 1 (1958): 1-21.
1957
Billings, W. D., and A. F. Mark. "Factors Involved in the Persistence of Montane Treeless Balds." Ecology 38, no. 1 (1957): 140-142.