APA引文

Pennell, R., & Lamb, C. (1997). Programmed Cell Death in Plants.

Citação norma Chicago

Pennell, RI, and C. Lamb. Programmed Cell Death in Plants. 1997.

MLA引文

Pennell, RI, and C. Lamb. Programmed Cell Death in Plants. 1997.

警告：這些引文格式不一定是100％准確.