Kennett J Frey. (1967). Plant breeding: A symposium held at Iowa State University. Iowa: Iowa State Univ.
استشهاد بنمط شيكاغوKennett J Frey. Plant Breeding: A Symposium Held At Iowa State University. Iowa: Iowa State Univ, 1967.
MLA استشهادKennett J Frey. Plant Breeding: A Symposium Held At Iowa State University. Iowa: Iowa State Univ, 1967.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.