Chasan, D. J. (1993). Mountains to sound: The creation of a greenway across the cascades. Sasquatch Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChasan, Daniel Jack. Mountains to Sound: The Creation of a Greenway Across the Cascades. Seattle: Sasquatch Books, 1993.
एमएलए (8वां संस्करण) प्रशस्ति पत्रChasan, Daniel Jack. Mountains to Sound: The Creation of a Greenway Across the Cascades. Sasquatch Books, 1993.
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