Holmes, W. H. (1862). Free cotton: How and where to grow it : with a map of British Guiana. Chapman and Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHolmes, W. H. Free Cotton: How and Where to Grow It : With a Map of British Guiana. London: Chapman and Hall, 1862.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHolmes, W. H. Free Cotton: How and Where to Grow It : With a Map of British Guiana. Chapman and Hall, 1862.
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