(1980). The Week that was: St. Helens volcanic eruption - May 1980. KSPO NewsRadio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Week That Was: St. Helens Volcanic Eruption - May 1980. Spokane, Wash.: KSPO NewsRadio, 1980.
एमएलए (8वां संस्करण) प्रशस्ति पत्रThe Week That Was: St. Helens Volcanic Eruption - May 1980. KSPO NewsRadio, 1980.
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