Physical activity as an index of heart attack risk in college alumni.

MLA

Paffenbarger, R. S., et al. “Physical Activity as an Index of Heart Attack Risk in College Alumni.” American Journal of Epidemiology, vol. 108, no. 3, Sept. 1978, pp. 161–75. EBSCOhost, https://doi.org/10.1093/oxfordjournals.aje.a112608.

APA

Paffenbarger, R. S., Wing, A. L., & Hyde, R. T. (1978). Physical activity as an index of heart attack risk in college alumni. American Journal of Epidemiology, 108(3), 161–175. https://doi.org/10.1093/oxfordjournals.aje.a112608

Chicago

Paffenbarger, R S, A L Wing, and R T Hyde. 1978. “Physical Activity as an Index of Heart Attack Risk in College Alumni.” American Journal of Epidemiology 108 (3): 161–75. doi:10.1093/oxfordjournals.aje.a112608.