Gaya APA
L., E., Gschneidner, J, K. (1987).
Handbook on The Physics and Chemistry of Rare Earth, Vol.9 .
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North-Holland Publishing Company.
Gaya MLA
L., Eyring., Gschneidner, Jr., KA.
"Handbook on The Physics and Chemistry of Rare Earth, Vol.9".
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North-Holland Publishing Company,
1987.
Text.