http://pec.lib.wvu.edu/record/P187071938Growth and fruitfulness of two apple varieties on French crab seedlings and on a clonal rootstock.<p> Journal article reprint from: <em>Proceedings of the American Society for Horticultural Science</em>, 1938.</p>Clarke, W. S.Yerkes, G. E. (Guy Eston), 1880-Sudds, R. H.Apples--Yields.Apples--Growth.Apples--Rootstocks.Apples--Varieties.14256