Gschneidner, K. A. e., & Eyring, L. e. (1979). Handbook on the physics and chemistry of rare earths: V4. non-metallic compounds-II. North-Holland ; sole distributors for the U.S.A. and Canada, Elsevier North-Holland.

Gschneidner, Karl A. ed, và LeRoy. ed Eyring. Handbook on the Physics and Chemistry of Rare Earths: V4. Non-metallic Compounds-II. Amsterdam ; New York, NY, USA: North-Holland ; sole distributors for the U.S.A. and Canada, Elsevier North-Holland, 1979.

Gschneidner, Karl A. ed, và LeRoy. ed Eyring. Handbook on the Physics and Chemistry of Rare Earths: V4. Non-metallic Compounds-II. North-Holland ; sole distributors for the U.S.A. and Canada, Elsevier North-Holland, 1979.