@misc{_Nature_1921,
 access={Dla wszystkich bez ograniczeń},
 address={London},
 address={New York},
 year={1921},
 rights={Domena publiczna (Public domain)},
 description={brak nr 2669, 2670, 2677},
 publisher={Macmillan and Co.},
 language={eng},
 title={Nature : a Weekly Illustrated Journal of Science. Volume 106, 1921 January 6, [No. 2671]},
 type={czasopismo},
 keywords={nauki matematyczno-przyrodnicze, nauka},
}