@misc{Demel_Kazimierz_(1889–1978)_Biologja,
 author={Demel, Kazimierz (1889–1978)},
 copyright={Rights Reserved - Restricted Access},
 howpublished={online},
 language={pol},
 title={Biologja morza : rys ogólny z uwzględnieniem życia Bałtyku},
 type={Text},
 keywords={Marine biology},
}