APA引文

Powell, T., Sturridge, M. F., Suvarna, S. K., Terrar, D. A., & Twist, V. W. (1981). Intact individual heart cells isolated from human ventricular tissue.

Citação norma Chicago

Powell, T., M F. Sturridge, S K. Suvarna, D A. Terrar, and V W. Twist. Intact Individual Heart Cells Isolated From Human Ventricular Tissue. 1981.

MLA引文

Powell, T., et al. Intact Individual Heart Cells Isolated From Human Ventricular Tissue. 1981.