Gubbens, P. C. (1977). Magnetic properties of rare earth iron compounds. Delft University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGubbens, Paulus C.M. Magnetic Properties of Rare Earth Iron Compounds. Amsterdam: Delft University Press, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGubbens, Paulus C.M. Magnetic Properties of Rare Earth Iron Compounds. Delft University Press, 1977.
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