@inbook{Wróblewska2007,
author = {Wróblewska, W.},
title= {Procreative behaviours of teenagers},
year = {2007},
booktitle = {Reproductive Health. UNDP Report on Social Development},
address = {Warsaw},
publisher = {UNDP-UNFPA and Ministry of Health},
pages = {120--125},
series = {in Polish},
}