1. Barrett, H.C., 1958a. The best parents in breeding French Hybrid grapes. Fruit Var. Hort. Dig. 12: 39–42.
2. Barrett, H.C., 1958b. The best parents in breeding French Hybrid grapes (Part II). Fruit Var. Hort. Dig. 12: 55–59.
3. Burnham, C.R., 1962. Discussions in cytogenetics. Charles R. Burnham, St. Paul, MN.
4. Clausen, J., 1951. Stages in the evolution of plant species. Cornell Univ. Press, Ithaca, NY.
5. Einset, J. & C., Pratt, 1975. Grapes. In: J.N., Moore & J., Janick (Eds). Advances in Fruit Breeding, pp. 130–153. Purdue Univ. Press, Lafayette, Ind.