返回Google圖書搜尋

Letter of Alexander Von Humboldt Written Betwen the Years 1827 and 1858 to Varnhagen Von Ense ...

出版	Trubner Company, 1860
URL	http://books.google.com.hk/books?id=tV-Hb62Exq8C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN