Yassif, J. (2017). Reducing Global Catastrophic Biological Risks. Health Secur.
Dyfyniad Arddull ChicagoYassif, Jaime. "Reducing Global Catastrophic Biological Risks." Health Secur 2017.
Dyfyniad MLAYassif, Jaime. "Reducing Global Catastrophic Biological Risks." Health Secur 2017.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.