Swanson, J. (2016). National geographic kids: All the robotic photos, facts, and fun! National Geographic.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSwanson, Jennifer. National Geographic Kids: All the Robotic Photos, Facts, and Fun! Washington, D.C.: National Geographic, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSwanson, Jennifer. National Geographic Kids: All the Robotic Photos, Facts, and Fun! National Geographic, 2016.
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