Trinidad, F. (1965). An investigation of supervisory practices of department heads of science in the Manila public secondary schools. [s.n.].
Citace podle Chicago (17th ed.)Trinidad, Felicisima. An Investigation of Supervisory Practices of Department Heads of Science in the Manila Public Secondary Schools. New Brunswick, N.J: [s.n.], 1965.
Citace podle MLA (9th ed.)Trinidad, Felicisima. An Investigation of Supervisory Practices of Department Heads of Science in the Manila Public Secondary Schools. [s.n.], 1965.
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