Romaine, G. (2017). Geology lab for kids: 52 projects to explore rocks, gems, geodes, crystals, fossils, and other wonders of the earth's surface. Quarry.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Romaine, Garret. Geology Lab for Kids: 52 Projects to Explore Rocks, Gems, Geodes, Crystals, Fossils, and Other Wonders of the Earth's Surface. Beverly, MA: Quarry, 2017.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Romaine, Garret. Geology Lab for Kids: 52 Projects to Explore Rocks, Gems, Geodes, Crystals, Fossils, and Other Wonders of the Earth's Surface. Quarry, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.