VandenHeuvel, A., Robertson, F., & Doube, L. (1994). The class of '71 revisited. National Institute of Labour Studies.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVandenHeuvel, Adriana, Frances Robertson, और Loene Doube. The Class of '71 Revisited. Bedford Park, SA: National Institute of Labour Studies, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVandenHeuvel, Adriana, et al. The Class of '71 Revisited. National Institute of Labour Studies, 1994.
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