Le-Duan. (1969). Role of the Vietnamese working class and tasks of the trade-unions at the present stage. Foreign Language Pub. House.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Le-Duan. Role of the Vietnamese Working Class and Tasks of the Trade-unions at the Present Stage. Hanoi: Foreign Language Pub. House, 1969.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Le-Duan. Role of the Vietnamese Working Class and Tasks of the Trade-unions at the Present Stage. Foreign Language Pub. House, 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.