APA引文

Krek, W., & Nigg, E. A. (1989). Structure and developmental expression of the chicken CDC2 kinase.

Citação norma Chicago

Krek, W., and E A. Nigg. Structure and Developmental Expression of the Chicken CDC2 Kinase. 1989.

MLA引文

Krek, W., and E A. Nigg. Structure and Developmental Expression of the Chicken CDC2 Kinase. 1989.

警告：這些引文格式不一定是100％准確.