Davidson, G. (2003). Verbs and tenses. Singapore: Learners Publishing Pte Ltd.
Trích dẫn kiểu ChicagoDavidson, George. Verbs and Tenses. Singapore: Learners Publishing Pte Ltd, 2003.
MLA引文Davidson, George. Verbs and Tenses. Singapore: Learners Publishing Pte Ltd, 2003.
警告:這些引文格式不一定是100%准確.