John Stringer; Deborah Herridge. (2012). Heinemann Explore Science 2nd International Edition Reader G5 How We See Things (Primary Explore Science International Edition) (2nd International edition.). Heinemann.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohn Stringer; Deborah Herridge. Heinemann Explore Science 2nd International Edition Reader G5 How We See Things (Primary Explore Science International Edition). 2nd International edition. Heinemann, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJohn Stringer; Deborah Herridge. Heinemann Explore Science 2nd International Edition Reader G5 How We See Things (Primary Explore Science International Edition). 2nd International edition. Heinemann, 2012.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.