Kruif, Paul de.
Fifty Thousand Could Live. - Nueva York-US : The Reader's Digest Association, 1944. - páginas 89-93 : ilustraciones full color - Mensual - Vol. 45, no. 271(Nom. 1944) - The Reader's Digest ; no.271 . - The Reader's Digest Association. .
Fifty Thousand Could Live. - Nueva York-US : The Reader's Digest Association, 1944. - páginas 89-93 : ilustraciones full color - Mensual - Vol. 45, no. 271(Nom. 1944) - The Reader's Digest ; no.271 . - The Reader's Digest Association. .