YING, L. P., & HISTORY. (2021). STAMP UP FOR SINGAPORE: COMMEMORATION IN NATIONAL DAY STAMPS, 1960-1984.
استشهاد بنمط شيكاغوYING, LOH PEI, و HISTORY. STAMP UP FOR SINGAPORE: COMMEMORATION IN NATIONAL DAY STAMPS, 1960-1984. 2021.
MLA استشهادYING, LOH PEI, و HISTORY. STAMP UP FOR SINGAPORE: COMMEMORATION IN NATIONAL DAY STAMPS, 1960-1984. 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.