Mrs Duane Hoffstetter books & textbook
POMONA [Winter 1985, Vol. XVIII, No. 1] (Pomona, Journal of the North American Fruit Explorers (NAFEX), Volume XVIII)
Michael Maltas Joel Gagnon Richard Waligurski Lon Rombough Paul E. Baker Thomas J. Racho David Moulton John V. Creech Mrs Duane Hoffstetter J. S. Akin et al Ruth Klippstein
North American Fruit Explorers (NAFEX) /1985T Journal / 84 Pages
