Sno-Engineering Inc & Washington State Parks and Recreation Commission. (1992). Final Mt. Spokane State Park alpine ski area study, executive summary. Sno.engineering.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sno-Engineering Inc و Washington State Parks and Recreation Commission. Final Mt. Spokane State Park Alpine Ski Area Study, Executive Summary. Bellevue, Wash.: Sno.engineering, 1992.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sno-Engineering Inc و Washington State Parks and Recreation Commission. Final Mt. Spokane State Park Alpine Ski Area Study, Executive Summary. Sno.engineering, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.