APA引文

W F Twaddell. (1963). The English verb auxiliaries. Rholde Island: Brown Univ.

Trích dẫn kiểu Chicago

W F Twaddell. The English Verb Auxiliaries. Rholde Island: Brown Univ, 1963.

MLA引文

W F Twaddell. The English Verb Auxiliaries. Rholde Island: Brown Univ, 1963.

警告：这些引文格式不一定是100％准确.