Crichton, J., & Koster, P. (2006). English made easy: Learning English through pictures. Tuttle.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCrichton, Jonathan, और Pieter Koster. English Made Easy: Learning English Through Pictures. Rutland, Vt.: Tuttle, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCrichton, Jonathan, और Pieter Koster. English Made Easy: Learning English Through Pictures. Tuttle, 2006.
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