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Keywords:
BRITISH RAILWAYS,
CAPE TOWN UNIVERSITY,
G MAUNSELL,
RENDELL PALMER & TRITTON,
CANADA NATIONAL RESEARCH C,
ECONOMICS,
ENGINEERING,
CONSTRUCTION,
RAILWAYS,
LINES,
TRAFFIC,
ANALYSIS,
SURVEYS,
AERIAL,
PHOTOGRAMMETRY,
WEATHER,
CONDITIONS,
MUSKEG,
PERMAFROST,
PHOTOGRAPHY,
TRACK,
LAYING,
TRACKLAYING,
WINTER,
RAILS,
GREAT SLAVE LAK,
CANADA,
NORTH AMERICA
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© Thomas Telford and ICE
1965
