Colombo Plan Bureau. (1968). Report of the Working Party on the special topic to analyze techniques adapted for export promotion by each member country .. Colombo Plan Bureau.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Colombo Plan Bureau. Report of the Working Party on the Special Topic to Analyze Techniques Adapted for Export Promotion by Each Member Country .. Colombo, Ceylon: Colombo Plan Bureau, 1968.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Colombo Plan Bureau. Report of the Working Party on the Special Topic to Analyze Techniques Adapted for Export Promotion by Each Member Country .. Colombo Plan Bureau, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.