Honovich, N., & Beer, J. (2014). Get outside guide: All things adventure, exploration, and fun! National Geographic.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHonovich, Nancy, और Julie Beer. Get Outside Guide: All Things Adventure, Exploration, and Fun! Washington, D.C.: National Geographic, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHonovich, Nancy, और Julie Beer. Get Outside Guide: All Things Adventure, Exploration, and Fun! National Geographic, 2014.
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