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.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিRacaza, 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.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিRacaza, 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.