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Wave Lengths in the Red and Infra-red Spectra of Iron, Cobalt, and Nickel Arcs

出版	U.S. Department of Commerce, Bureau of Standards, 1919
URL	http://books.google.com.hk/books?id=ZsaGecwsoEMC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN