Trinidad, F. (1965). An investigation of supervisory practices of department heads of science in the Manila public secondary schools. [s.n.].
Chicago Style (17th ed.) CitationTrinidad, Felicisima. An Investigation of Supervisory Practices of Department Heads of Science in the Manila Public Secondary Schools. New Brunswick, N.J: [s.n.], 1965.
MLA (9th ed.) CitationTrinidad, Felicisima. An Investigation of Supervisory Practices of Department Heads of Science in the Manila Public Secondary Schools. [s.n.], 1965.
Warning: These citations may not always be 100% accurate.