Nisbet, J. (1999). Singing grass, burning sage: Discovering Washington's shrub-steppe. Graphic Arts Center Pub..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNisbet, Jack. Singing Grass, Burning Sage: Discovering Washington's Shrub-steppe. Portland, Or.: Graphic Arts Center Pub., 1999.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNisbet, Jack. Singing Grass, Burning Sage: Discovering Washington's Shrub-steppe. Graphic Arts Center Pub., 1999.
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