Gibbs, D. (1909). Elementary English grammar and composition. American Book.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGibbs, David. Elementary English Grammar and Composition. New York: American Book, 1909.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGibbs, David. Elementary English Grammar and Composition. American Book, 1909.
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