Don Birkholz books & textbook
Pomona Fall 1993 Vol XXVI, No. 4
Sheridan Bell Sarah Wolfgang Ed Lachowski Wendall Mosher Joseph W. Shandle Roger McFarland Abner J. Schlabach John Carlucci Travis Callahan Don Birkholz Wayne Myers et al
North American Fruit Explorers NAFEX /1993T Journal / 80 Pages
Pomona Spring 1992 (Pomona Quarterly Journal, Vol. XXV, No. 2)
Valle Lunzmann Amy Iezzoni Frank Foltz John Bunker Lloyd M. Williams Hector Black Jerry Lehman Brent Bohlen Don Birkholz George Albert Stilphen et al Gene Wild
North American Fruit Explorers (NAFEX) /1992T Journal / 80 Pages
