![Quantity separation of rare earths by liquid-liquid extraction. [Part] I, The first kilogram of gadolinium oxide / [by] Boyd Weaver, F. A. Kappelmann [and] A. C. Topp. 1952 [Leather Bound]](https://m.media-amazon.com/images/I/41ZIsfKS2hL._SL160_.jpg)
Quantity separation of rare earths by liquid-liquid extraction. [Part] I, The first kilogram of gadolinium oxide / [by] Boyd Weaver, F. A. Kappelmann [and] A. C. Topp. 1952 [Leather Bound]
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