Holgren, P. G. (1958). City of Spokane Washington: 1958 City Precincts. City Engineer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHolgren, P. G. City of Spokane Washington: 1958 City Precincts. Spokane, Wash.: City Engineer, 1958.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHolgren, P. G. City of Spokane Washington: 1958 City Precincts. City Engineer, 1958.
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