Washington (State). Department of Agriculture. (1989). Washington's centennial farms: Yesterday and today. Washington State Dept. of Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Agriculture. Washington's Centennial Farms: Yesterday and Today. Olympia, Wash. (406 General Administration Bldg., Olympia 98504-0641): Washington State Dept. of Agriculture, 1989.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Agriculture. Washington's Centennial Farms: Yesterday and Today. Washington State Dept. of Agriculture, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.