Hutabarat, P. H. (1980). Estimation of phenotypic and genetic parameters of feed efficiency and its component traits in two meat-type chicken population [microform]. Photoduplication Service, University of the Philippines Library.
Cytowanie według stylu Chicago (wyd. 17)Hutabarat, Pittor Hasudungan. Estimation of Phenotypic and Genetic Parameters of Feed Efficiency and Its Component Traits in Two Meat-type Chicken Population [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1980.
Cytowanie według stylu MLA (wyd. 9)Hutabarat, Pittor Hasudungan. Estimation of Phenotypic and Genetic Parameters of Feed Efficiency and Its Component Traits in Two Meat-type Chicken Population [microform]. Photoduplication Service, University of the Philippines Library, 1980.