APA (7th ed.) Citation

Vien, N. K. (1972). Agricultural problems: Some technical aspects. [s.n.].

Chicago Style (17th ed.) Citation

Vien, Nguyen Khac. Agricultural Problems: Some Technical Aspects. Hanoi: [s.n.], 1972.

MLA (9th ed.) Citation

Vien, Nguyen Khac. Agricultural Problems: Some Technical Aspects. [s.n.], 1972.

Warning: These citations may not always be 100% accurate.