Singapore. Housing and Development Board. Annual report - Housing and Development Board, Republic of Singapore. Printed by the Govt. Print. Off.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Singapore. Housing and Development Board. Annual Report - Housing and Development Board, Republic of Singapore. Singapore: Printed by the Govt. Print. Off.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Singapore. Housing and Development Board. Annual Report - Housing and Development Board, Republic of Singapore. Printed by the Govt. Print. Off.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.