Gill, R. W. (1984). The Thames and Hudson manual of rendering with pen and ink (Rev. and enl. ed.). Thames and Hudson.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGill, Robert W. The Thames and Hudson Manual of Rendering with Pen and Ink. Rev. and enl. ed. London ; New York: Thames and Hudson, 1984.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGill, Robert W. The Thames and Hudson Manual of Rendering with Pen and Ink. Rev. and enl. ed. Thames and Hudson, 1984.
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