The Vegetables of New York: I Legumes, cucurbits, corn, allium, asparagus. v.1, pt.1. Peas of New York, by U.P. Hedrick. Assisted by F.H. Hall, L.R. Hawthorn and Alwin Berger. 1928
Leslie Rushton Hawthorn, Frank Henry Hall, New York. Agricultural experiment station, Geneva
