Cita APA (7a ed.)

Ahmad, Z., Arif, M., Ali, F., Khan, I., & Nisar, K. S. (2020). A report on COVID-19 epidemic in Pakistan using SEIR fractional model. Nature Portfolio.

Cita Chicago Style (17a ed.)

Ahmad, Zubair, Muhammad Arif, Farhad Ali, Ilyas Khan, y Kottakkaran Sooppy Nisar. A Report on COVID-19 Epidemic in Pakistan Using SEIR Fractional Model. Nature Portfolio, 2020.

Cita MLA (8a ed.)

Ahmad, Zubair, et al. A Report on COVID-19 Epidemic in Pakistan Using SEIR Fractional Model. Nature Portfolio, 2020.