Stefan Kudelski and his Nagra 5N Recorder NEW JERSEY, UNITED STATES – 1956: Dr. Hilary Koprowski (R) and an assistant working on polio vaccines (Photo by Yale Joel/Life Magazine/The LIFE Picture Collection via Getty Images) 15 stycznia 2021 25Odsłon 0Lajków Weronika Misiuk [etykiety-publikacji]