United States. Bureau of Reclamation, Washington State University, Washington Agricultural Experiment Station, United States. Department of Agriculture, & Pacific Northwest Regional Planning Commission. (1945). Types of farming: Columbia Basin joint investigations : problem 2. U.S. Govt. Print. Off..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Bureau of Reclamation, Washington State University, Washington Agricultural Experiment Station, United States. Department of Agriculture, और Pacific Northwest Regional Planning Commission. Types of Farming: Columbia Basin Joint Investigations : Problem 2. Washington, D.C.: U.S. Govt. Print. Off., 1945.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited States. Bureau of Reclamation, et al. Types of Farming: Columbia Basin Joint Investigations : Problem 2. U.S. Govt. Print. Off., 1945.