Columbia subject headings:
Plumbe, Wilfred John--Travel--Southeast Asia.
Southeast Asia--Description and travel.
Harvard subject headings:
Librarians--Travel--Southeast Asia.
Plumbe, Wilfred J. (Wilfred John), 1915-
Southeast Asia--Description and travel.
Princeton subject headings:
Plumbe, Wilfred John--Travel--Asia, Southeastern.
Southeast Asia--Description and travel.