TY - BOOK ID - 146195134 TI - Reference Information Paper. Tome 66, Geographical exploration and mapping in the 19th century : a survey of the records in the National Archives. AU - The National Archives of United States AU - Ehrenberg, Ralph E. PY - 1973 DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:146195134 AB - ER -