Perdew, L., & Rauch, M. (2025). Wacky contraptions: Gadgets that whiz, whoosh, whirl, and twist : with hands-on engineering activities for kids. Nomad Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerdew, Laura, और Micah Rauch. Wacky Contraptions: Gadgets That Whiz, Whoosh, Whirl, and Twist : With Hands-on Engineering Activities for Kids. White River Junction, VT: Nomad Press, 2025.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPerdew, Laura, और Micah Rauch. Wacky Contraptions: Gadgets That Whiz, Whoosh, Whirl, and Twist : With Hands-on Engineering Activities for Kids. Nomad Press, 2025.
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