Mark, J. (1964). Raising productivity in Singapore ; with case studies. Economic Development Board of Singapore.
Chicago-viite (17. p.)Mark, Joseph. Raising Productivity in Singapore ; with Case Studies. [Singapore: Economic Development Board of Singapore, 1964.
MLA-viite (9. p.)Mark, Joseph. Raising Productivity in Singapore ; with Case Studies. Economic Development Board of Singapore, 1964.
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