An investigation of supervisory practices of department heads of science in the Manila public secondary schools - Trinidad, Felicisima, Martin 1914- (New Brunswick, N.J. [s.n.], 1965)
Produced by Microfilm-xyrography in 1970 by University Microfilms.
Thesis (Ed.D.)--Rutgers University.
Keywords: School supervision, Secondary; Education -- Philippines -- Manila; Science -- Study and teaching (Secondary).