APA引文

(1990). Vietnam agricultural and food production sector review. [S.l.]: [s.n.].

Trích dẫn kiểu Chicago

Vietnam Agricultural and Food Production Sector Review. [S.l.]: [s.n.], 1990.

MLA引文

Vietnam Agricultural and Food Production Sector Review. [S.l.]: [s.n.], 1990.

警告：这些引文格式不一定是100％准确.