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Half-hours with the Stars; a Plain and Easy Guide to the Knowledge of the Constellations

Richard Anthony Proctor

出版	W.H. Allen, 1892
URL	http://books.google.com.hk/books?id=fQQ_AQAAIAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋

Showing, in 12 maps, the position of the principal star-groups night after night throughout the year, with introduction and a separate explanation of each map. True for every year.