Yeh, S. H. K., & Leong, M. W. N. (1972). Annotated urban bibliography of Singapore. Statistics and Research Dept., Housing and Development Board.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Yeh, Stephen H. K., و Margaret W. N. Leong. Annotated Urban Bibliography of Singapore. [Singapore: Statistics and Research Dept., Housing and Development Board, 1972.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Yeh, Stephen H. K., و Margaret W. N. Leong. Annotated Urban Bibliography of Singapore. Statistics and Research Dept., Housing and Development Board, 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.