APA引文

Hubbard, T. J., Ailey, B., Brenner, S. E., Murzin, A. G., & Chothia, C. (1999). SCOP: A Structural Classification of Proteins database.

Citação norma Chicago

Hubbard, T J., B. Ailey, S E. Brenner, A G. Murzin, and C. Chothia. SCOP: A Structural Classification of Proteins Database. 1999.

MLA引文

Hubbard, T J., et al. SCOP: A Structural Classification of Proteins Database. 1999.

警告：這些引文格式不一定是100％准確.