APA引文

Clayton, S. G. (1970). Obstetrics (12th ed.). ELBS Edward Arnold.

Chicago Edition Citation

Clayton, Stanley G. Obstetrics. 12th ed. London: ELBS Edward Arnold, 1970.

MLA引文

Clayton, Stanley G. Obstetrics. 12th ed. ELBS Edward Arnold, 1970.

警告：这些引文格式不一定是100％准确.