Mattern, J. (2015). It's a good thing there are ladybugs. Children's Press, an imprint of Scholastic Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMattern, Joanne. It's a Good Thing There Are Ladybugs. New York: Children's Press, an imprint of Scholastic Inc., 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMattern, Joanne. It's a Good Thing There Are Ladybugs. Children's Press, an imprint of Scholastic Inc., 2015.
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