2 | | The Grapes of New York | HEDRICK, U.P. | J.B. Lyon Company, Albany | 1908 | WOODRUFF | 427 |
29 | | Les Vignes Américaines. Porte-greffes et Producteurs-directs | RAVAZ, L. | Coulet et Fils, Montpellier; Masson et Cie., Paris | 1902 | | 202 |
120 | | Handbuch der Ampelographie | GOETHE, H. | Verlagsbuchhandlung Paul Parey, Berlin | 1887 | WOODRUFFS RED | 206 |
257 | | Foundations of American grape culture | MUNSON, T.V. | T.V. Munson & Son, Denison (Texas) | 1909 | WOODRUFF | 167 |
401 | | Kultur und Beschreibung der amerikanischen Weintrauben | BABO, A. VON; RÜMPLER, T. | Verlagsbuchhandlung Paul Parey, Berlin | 1885 | | 268 |
40503 | | USDA GRIN Germplasm Resources Information Network | ANONYMOUS | United States Department of Agriculture, Agricultural Research Service | 2016 | WOODRUFF | 899 |