Spokane Public Library, Washington State Parks and Recreation Commission, Washington (State). Department of Fish and Wildlife, & Washington (State). Department of Natural Resources. Check out Washington: Discover Pass.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Spokane Public Library, Washington State Parks and Recreation Commission, Washington (State). Department of Fish and Wildlife, و Washington (State). Department of Natural Resources. Check Out Washington: Discover Pass.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Spokane Public Library, et al. Check Out Washington: Discover Pass.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.