Columbia subject headings:
Harvard subject headings:
Beedell, Mike, 1956---Travel.
MacInnis, Jeff, 1963---Travel.
Northwest Passage.
Perception (Boat)
True adventure stories.
Princeton subject headings:
Beedell, Mike, 1956---Travel--Northwest Passage.
MacInnis, Jeff, 1963---Travel--Northwest Passage.
Northwest Passage--Description and travel.