Zoehfeld, K. W., & Meisel, P. (1998). What is the world made of?: All about solids, liquids, and gases. HarperCollins Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZoehfeld, Kathleen Weidner, और Paul Meisel. What Is the World Made of?: All About Solids, Liquids, and Gases. New York: HarperCollins Publishers, 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रZoehfeld, Kathleen Weidner, और Paul Meisel. What Is the World Made of?: All About Solids, Liquids, and Gases. HarperCollins Publishers, 1998.
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