Warsaw-Wilno 1938.Nasza Księgarnia, Sp. Akc. of the Polish Teachers' Union.14.5x21 cm, pp. 315, (4), black and white illustrations in the text, soft cover. Very good condition (ownership stamps, uncut pages).
The foreword was written by Marian Krawczyk. Contents include general issues related to teaching swimming at school, teaching method and numerous exercises.