APA aipamena

Hu, K., Ivanov, P. C., Hilton, M. F., Chen, Z., Ayers, R. T., Stanley, H. E., & Shea, S. A. (2004). Endogenous circadian rhythm in an index of cardiac vulnerability independent of changes in behavior. National Academy of Sciences.

Chicago Style aipamena

Hu, Kun, Plamen Ch Ivanov, Michael F. Hilton, Zhi Chen, R. Timothy Ayers, H. Eugene Stanley, and Steven A. Shea. Endogenous Circadian Rhythm in an Index of Cardiac Vulnerability Independent of Changes in Behavior. National Academy of Sciences, 2004.

MLA aipamena

Hu, Kun, et al. Endogenous Circadian Rhythm in an Index of Cardiac Vulnerability Independent of Changes in Behavior. National Academy of Sciences, 2004.