Darwin, C., Barrett, P. H., & Freeman, R. B. (1989). The effects of cross and self fertilization in the vegetable kingdom. Pickering.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDarwin, Charles, Paul H. Barrett, और R. B. Freeman. The Effects of Cross and Self Fertilization in the Vegetable Kingdom. London: Pickering, 1989.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDarwin, Charles, et al. The Effects of Cross and Self Fertilization in the Vegetable Kingdom. Pickering, 1989.
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