Levenson, E. (1994). Teaching children about physical science: Ideas and activities every teacher and parent can use (Rev. ed.). TAB Books.
Cita Chicago (17th ed.)Levenson, Elaine. Teaching Children About Physical Science: Ideas and Activities Every Teacher and Parent Can Use. Rev. ed. Blue Ridge Summit, PA: TAB Books, 1994.
Cita MLA (9th ed.)Levenson, Elaine. Teaching Children About Physical Science: Ideas and Activities Every Teacher and Parent Can Use. Rev. ed. TAB Books, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.