TY - BOOK ED - ebrary, Inc. TI - Polar icebreaker roles and U.S. future needs: a preliminary assessment AV - GC11.2 .P65 2005eb PY - 2005/// CY - Washington, D.C. PB - National Academy Press KW - Ice caps KW - Oceanography KW - Electronic books KW - local N1 - Electronic reproduction; Palo Alto, Calif.; ebrary; 2009; Available via World Wide Web; Access may be limited to ebrary affiliated libraries UR - http://site.ebrary.com/lib/strathmore/Doc?id=10103983 ER -