Comber, L. C.
Science education in nineteen countries : an empirical study / L.C. Comber and John P. Keeves. - New York : Wiley, c1973. - 403 p. - A Halsted Press book .
0470166827
Science--Study and teaching.
Science education in nineteen countries : an empirical study / L.C. Comber and John P. Keeves. - New York : Wiley, c1973. - 403 p. - A Halsted Press book .
0470166827
Science--Study and teaching.