Florian, D. (2007). Comets, stars, the Moon, and Mars: Space poems and paintings. Harcourt.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFlorian, Douglas. Comets, Stars, the Moon, and Mars: Space Poems and Paintings. Orlando: Harcourt, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFlorian, Douglas. Comets, Stars, the Moon, and Mars: Space Poems and Paintings. Harcourt, 2007.
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