Trowbridge, L. W. (1986). Becoming a secondary school science teacher (4th ed.). Merrill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTrowbridge, Leslie W. Becoming a Secondary School Science Teacher. 4th ed. Columbus, Ohio: Merrill, 1986.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTrowbridge, Leslie W. Becoming a Secondary School Science Teacher. 4th ed. Merrill, 1986.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.