APA引文

Engle, M. A., Ehlers, K. H., O'Loughlin, J. E., Giardina, P. J., & Hilgartner, M. W. (1985). Beta thalassemia and heart disease: Three decades of gradual progress. American Clinical and Climatological Association.

Citação norma Chicago

Engle, M. A., K. H. Ehlers, J. E. O'Loughlin, P. J. Giardina, and M. W. Hilgartner. Beta Thalassemia and Heart Disease: Three Decades of Gradual Progress. American Clinical and Climatological Association, 1985.

MLA引文

Engle, M. A., et al. Beta Thalassemia and Heart Disease: Three Decades of Gradual Progress. American Clinical and Climatological Association, 1985.