@misc{Botsford_Comstock_Anna_(1854-1930)_Handbook,
 author={Botsford Comstock, Anna (1854-1930)},
 howpublished={online},
 publisher={Ithaca ; N.Y : Comstock Publishing Company},
 language={eng},
 type={książka},
 title={Handbook of nature - study : for teachers and parents},
 keywords={Przyroda - nauczanie},
}