| 322 | MACGREGOR, D. | Growing grapes in Minnesota | Minnesota Grape Growers Association | 1991 | 54 |
| 841 | REYNOLDS, A. G. | Grapevine Breeding Programs for the Wine Industry | Woodhead Publishing Series in Food Science, Technology and Nutrition, Nr. 268 | 2015 | 70 |
| 40503 | ANONYMOUS | USDA GRIN Germplasm Resources Information Network | United States Department of Agriculture, Agricultural Research Service | 2016 | 1086 |
| 25 | ZWEIGELT, F.; STUMMER, A. | Die Direktträger | Weinland-Verlag, Wien | 1929 | 182 |
| 1230 | DUBE, G.; TURCOTTE, I. | Identification guide of grapevines grown in a cold climate: Wine grapes | Richard Grenier | 2014 | 132 |
| 760 | ROBINSON, JANCIS; HARDING, JULIA; VOUILLAMOZ, JOSÉ | Wine grapes. A complete guide to 1.368 vine varieties, including their origins and flavours | Penguin Books Ltd. | 2012 | 598 |
