Boordy Nursery. (1990). The Boordy Nursery Grape Book, 1990. https://oaks.kent.edu/node/3441
Boordy Nursery. 1990. “The Boordy Nursery Grape Book, 1990”. https://oaks.kent.edu/node/3441.
Boordy Nursery. The Boordy Nursery Grape Book, 1990. 1 May 1990, https://oaks.kent.edu/node/3441.