Hennessy, David E.
Elementary teacher's classroom science demonstrations and activities / David E. Hennessy. - Englewood Cliffs, N.J. : Prentice-Hall, 1964. - vii, 308 p. : ill. ; 26 cm.
Science --Experiments.
371.38 / HEE
Elementary teacher's classroom science demonstrations and activities / David E. Hennessy. - Englewood Cliffs, N.J. : Prentice-Hall, 1964. - vii, 308 p. : ill. ; 26 cm.
Science --Experiments.
371.38 / HEE