1994 Vegetative Propagation and Nursery Production of Walnut Rootstocks Burger, David W., Ellen G. Sutter. 1994.
1993 Vegetative Propagation and Nursery Production of Walnut Rootstocks Burger, David W., Ellen G. Sutter. 1993.
1992 Vegetative Propagation and Nursery Production of Walnut Rootstocks Burger, David W., Ellen G. Sutter. 1992.
