Cita APA (7a ed.)

Kannan, K., Murugan, S., Elamaran, C., & Srinivasan, S. (2021). A case of pneumopericardium and pneumomediastium in COVID 19 patient. Elsevier.

Cita Chicago Style (17a ed.)

Kannan, K., S. Murugan, C. Elamaran, y S.S Srinivasan. A Case of Pneumopericardium and Pneumomediastium in COVID 19 Patient. Elsevier, 2021.

Cita MLA (8a ed.)

Kannan, K., et al. A Case of Pneumopericardium and Pneumomediastium in COVID 19 Patient. Elsevier, 2021.