Economics Research Associates, Spokane Area Development Council, & Haworth and Anderson. (1976). Inland Empire economic base study. Economic Research Association.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Economics Research Associates, Spokane Area Development Council, و Haworth and Anderson. Inland Empire Economic Base Study. Spokane, Wash.: Economic Research Association, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Economics Research Associates, et al. Inland Empire Economic Base Study. Economic Research Association, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.