Le-Duan. (1969). Role of the Vietnamese working class and tasks of the trade-unions at the present stage. Foreign Language Pub. House.
Chicago-viite (17. p.)Le-Duan. Role of the Vietnamese Working Class and Tasks of the Trade-unions at the Present Stage. Hanoi: Foreign Language Pub. House, 1969.
MLA-viite (9. p.)Le-Duan. Role of the Vietnamese Working Class and Tasks of the Trade-unions at the Present Stage. Foreign Language Pub. House, 1969.
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