@misc{_Nature_1920,
 year={1920},
 rights={Domena publiczna (Public domain)},
 description={brak nr 2669, 2670, 2677},
 publisher={Macmillan and Co.},
 language={eng},
 type={czasopismo},
 title={Nature : a Weekly Illustrated Journal of Science. Volume 106},
 keywords={nauki matematyczno-przyrodnicze, nauka},
}