Geiger, T., & Geiger, F. M. (1973). Tales of two city-states: The development progress of Hong Kong and Singapore. National Planning Association.
Chicago-viite (17. p.)Geiger, Theodore, ja Frances M. Geiger. Tales of Two City-states: The Development Progress of Hong Kong and Singapore. [Washington]: National Planning Association, 1973.
MLA-viite (9. p.)Geiger, Theodore, ja Frances M. Geiger. Tales of Two City-states: The Development Progress of Hong Kong and Singapore. National Planning Association, 1973.
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