Dept. of Agriculture. (1967). Outdoors USA. [Washington: The United States Government Printing Office.
استشهاد بنمط شيكاغوDept. of Agriculture. Outdoors USA. [Washington: The United States Government Printing Office, 1967.
MLA استشهادDept. of Agriculture. Outdoors USA. [Washington: The United States Government Printing Office, 1967.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.