Racaza, L. B. (1976). A study of the methods and techniques used in the teaching of general science I in the public and some private high schools in Davao in the school year 1965-1966 [microform]. Photoduplication Service University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Racaza, Lucila B. A Study of the Methods and Techniques Used in the Teaching of General Science I in the Public and Some Private High Schools in Davao in the School Year 1965-1966 [microform]. Quezon City: Photoduplication Service University of the Philippines Library, 1976.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Racaza, Lucila B. A Study of the Methods and Techniques Used in the Teaching of General Science I in the Public and Some Private High Schools in Davao in the School Year 1965-1966 [microform]. Photoduplication Service University of the Philippines Library, 1976.