Sompop Kassumma. Evaluating crossbred dairy cattle for reproduction and production traits and their genetic potential in Thailand / by Sompop Kassumma. - Ames : Iowa State University Press, 1985. - 173 p. ; 21 cm. Thesis (Ph. D.) - Iowa State University, 1985. p. (164-172). Subjects--Topical Terms: Dairy cattle breeds.Dairy cattle--Breeding.--ThailandCattle--Breeding--Genetic aspects.--Thailand