Perdew, L., & Casteel, T. (2019). Biodiversity: Explore the diversity of life on Earth with environmental science activities for kids. Nomad Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerdew, Laura, और Tom Casteel. Biodiversity: Explore the Diversity of Life on Earth with Environmental Science Activities for Kids. White River Junction, VT: Nomad Press, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPerdew, Laura, और Tom Casteel. Biodiversity: Explore the Diversity of Life on Earth with Environmental Science Activities for Kids. Nomad Press, 2019.
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