Washington (State). Department of Health & Porterfield, J. D. (1964). Consultant's report, Spokane city, county health services.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Health और John D. Porterfield. Consultant's Report, Spokane City, County Health Services. Olympia?, 1964.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Health और John D. Porterfield. Consultant's Report, Spokane City, County Health Services. 1964.
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