Jacob M. Appel (2009). «Is all fair in biological warfare? The controversy over genetically engineered biological weapons» 7 ed. Journal of Medical Ethics. 35: 429–432. PMID19567692. doi:10.1136/jme.2008.028944
Jacob M. Appel (2009). «Is all fair in biological warfare? The controversy over genetically engineered biological weapons» 7 ed. Journal of Medical Ethics. 35: 429–432. PMID19567692. doi:10.1136/jme.2008.028944