Zoehfeld, K. W., & Meisel, P. (1998). What is the world made of?: All about solids, liquids, and gases. HarperCollins Publishers.
Cita Chicago Style (17a ed.)Zoehfeld, Kathleen Weidner, y Paul Meisel. What Is the World Made of?: All About Solids, Liquids, and Gases. New York: HarperCollins Publishers, 1998.
Cita MLA (8a ed.)Zoehfeld, Kathleen Weidner, y Paul Meisel. What Is the World Made of?: All About Solids, Liquids, and Gases. HarperCollins Publishers, 1998.
Precaución: Estas citas no son 100% exactas.