Oregon. Office of the Secretary of State. Oregon blue book. Secretary of State.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOregon. Office of the Secretary of State. Oregon Blue Book. Salem, OR: Secretary of State.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOregon. Office of the Secretary of State. Oregon Blue Book. Secretary of State.
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