Tan, K. G. (2012). Ranking the Liveability of the World's Major Cities: The Global Liveable Cities Index (GLCI). World Scientific Pub. Co.
Chicago-Zitierstil (17. Ausg.)Tan, Khee Giap. Ranking the Liveability of the World's Major Cities: The Global Liveable Cities Index (GLCI). Singapore: World Scientific Pub. Co, 2012.
MLA-Zitierstil (9. Ausg.)Tan, Khee Giap. Ranking the Liveability of the World's Major Cities: The Global Liveable Cities Index (GLCI). World Scientific Pub. Co, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.