Sien, C. M. A. &. C. L. (1979). DEVELOPING ECONOMIES AND THE ENVIRONMENT; THE SOUTHEAST ASIAN EXPRIENCE. McGraw-hill International.
Chicago-viite (17. p.)Sien, Colin Mc Andrews & Chia Lin. DEVELOPING ECONOMIES AND THE ENVIRONMENT; THE SOUTHEAST ASIAN EXPRIENCE. McGraw-hill International, 1979.
MLA-viite (8. p.)Sien, Colin Mc Andrews & Chia Lin. DEVELOPING ECONOMIES AND THE ENVIRONMENT; THE SOUTHEAST ASIAN EXPRIENCE. McGraw-hill International, 1979.
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