Donna DeVarona's Hydro-aerobics / Donna DeVarona and Barry Tarshis Hydro-aerobics. DeVarona, Donna. Tarshis, Barry. Swimming. Aquatic exercises. Aerobic exercises. GV837 .D47 1984 797.21 DED New York : Macmillan, 1984. 1984. 1984 Text xii, 163 p. : eng