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Prairie State Incubators and Brooders are the "nearest to Nature" Machines Made

D.C.R. Hoff (Firm : Neshanic, N.J.)

出版	D.C.R. Hoff, 1908
URL	http://books.google.com.hk/books?id=OUAhGwAACAAJ&hl=&source=gbs_api