United States. General Accounting Office. (1998). Water resources: Corps of Engineers' actions to assist salmon in the Columbia River Basin : report to Congressional requesters. The Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. General Accounting Office. Water Resources: Corps of Engineers' Actions to Assist Salmon in the Columbia River Basin : Report to Congressional Requesters. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): The Office, 1998.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. General Accounting Office. Water Resources: Corps of Engineers' Actions to Assist Salmon in the Columbia River Basin : Report to Congressional Requesters. The Office, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.