Geographia Polonica (1964) vol. 2
An attempt at the climatological classification of the health resort of Ciechocinek
Geographia Polonica (1964) vol. 2, pp. 79-84 | 
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[klimat@twarda.pan.pl], Institute of Geography and Spatial Organization Polish Academy of Sciences, Twarda 51/55, 00‑818 Warszawa, Poland