APA引文

Nguyen Khac Vien. (1968). The Year 1968: Chronology.

Chicago Style (17th ed.) Citation

Nguyen Khac Vien. The Year 1968: Chronology. Vietnam, 1968.

MLA引文

Nguyen Khac Vien. The Year 1968: Chronology. 1968.

警告：這些引文格式不一定是100％准確.