Mel Borgersen & Associates & Mount Spokane Chair Lifts, Inc. (1971). The Mount Spokane State Park region: A ten-year development plan. Mel Borgersen & Assoc..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mel Borgersen & Associates و Inc Mount Spokane Chair Lifts. The Mount Spokane State Park Region: A Ten-year Development Plan. Seattle, Wash.: Mel Borgersen & Assoc., 1971.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Mel Borgersen & Associates و Inc Mount Spokane Chair Lifts. The Mount Spokane State Park Region: A Ten-year Development Plan. Mel Borgersen & Assoc., 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.