@book{Tryjanowski:2006,
author
=
"P.Tryjanowski and T.Sparks and L.Jerzak",
title
=
"The White Stork in Poland, ISBN: 8360247358",
publisher
=
"Bogucki Wydaw. Naukowe",
address
=
"Poznań",
pages
=
"500",
year
=
"2006",
}