Landes, H. (1918). Map of Washington showing location of mines, quarries, limekilns, clay and cement plants and other mineral industries. Washington Geological Survery.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Landes, Henry. Map of Washington Showing Location of Mines, Quarries, Limekilns, Clay and Cement Plants and Other Mineral Industries. Olympia, Washington: Washington Geological Survery, 1918.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Landes, Henry. Map of Washington Showing Location of Mines, Quarries, Limekilns, Clay and Cement Plants and Other Mineral Industries. Washington Geological Survery, 1918.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.