233 | | Grape development and improvement. Yearbook of Agriculture 1937, 631-664 | SNYDER, E. | U.S. Government Printing Office, Washington | 1937 | | 638 |
1 | | Traité Général de Viticulture, Ampélographie, Vol. 1-7 | VIALA, P.; VERMOREL, V. | Masson et Compagnie, Paris | 1905-1910 | | Vol. 7, p. 93 |
237 | | American grape varieties | DIX, I.W.; MAGNESS, J.R. | U.S. Dep. of Agriculture, Washington D.C. (437) 1-33 | 1937 | COLERAIN | 14 |
257 | | Foundations of American grape culture | MUNSON, T.V. | T.V. Munson & Son, Denison (Texas) | 1909 | COLERAIN | 154 |