Bettsworth, Michael. Drownproofing : : a technique for water survival / [electronic resource] / Michael Bettsworth.. — New York : : Schocken Books,, 1977, c1976.. — 55 p. : : ill. ; 13 x 22 cm.



0805236465 : $5.95. 9780805236460 0805205586 (pbk.) : $2.95 9780805205589 (pbk.)

76048762


Drowning--Prevention.
Swimming.
Noyade--Prévention.
Natation.

GV837 / .B46 1977

797.2/1