Gooley, T. (2014). The lost art of reading nature's signs: Use outdoor clues to find your way, predict the weather, locate water, track animals--and other forgotten skills. Experiment.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gooley, Tristan. The Lost Art of Reading Nature's Signs: Use Outdoor Clues to Find Your Way, Predict the Weather, Locate Water, Track Animals--and Other Forgotten Skills. New York: Experiment, 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Gooley, Tristan. The Lost Art of Reading Nature's Signs: Use Outdoor Clues to Find Your Way, Predict the Weather, Locate Water, Track Animals--and Other Forgotten Skills. Experiment, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.