Jassem, Wiktor. 2003. Illustrations of the IPA: Polish. Journal of the International Phonetic Association 33. 103–107. Cambridge University Press.
@article{pol_jassem2003,
author = {Jassem, Wiktor},
journal = {Journal of the International Phonetic Association},
number = {1},
pages = {103–107},
publisher = {Cambridge University Press},
title = {Illustrations of the IPA: Polish},
volume = {33},
year = {2003}
}