Saw. Population Policies and Programmes in Singapore. ISEAS–Yusof Ishak Institute.
芝加哥风格引文Saw. Population Policies and Programmes in Singapore. ISEAS–Yusof Ishak Institute.
MLA引文Saw. Population Policies and Programmes in Singapore. ISEAS–Yusof Ishak Institute.
警告：这些引文格式不一定是100％准确.