National Geographic Magazine February 1961 No Insert

National Geographic Magazine February 1996 No Insert

National Geographic Magazine February 1997 With Insert

National Geographic Magazine Feb 1998, Vol. 193, No. 2 W/ Inserts & Supplement

National Geographic Magazine February 1998 Queen Maud Land Exploration Mapping

National Geographic Magazine February 1982 No Insert

National Geographic Magazine February 1972 No Insert

National Geographic Magazine February 1962 With Insert