Emmett, John.
Underwater swimming / John Emmett and Gordon Ridley. - Wakefield [Eng.] : New York : EP Publishing ; distributed by Sterling Pub. Co., 1978. - 120 p. : ill. ; 21 cm. - EP sport series .
Distributor from label on t.p.
Bibliography: p. 118-120.
071580569X 0715805703 (pbk.)
80487479
GB***
Deep diving.
Skin diving.
GV840.S78 / E45
797.2/3
Underwater swimming / John Emmett and Gordon Ridley. - Wakefield [Eng.] : New York : EP Publishing ; distributed by Sterling Pub. Co., 1978. - 120 p. : ill. ; 21 cm. - EP sport series .
Distributor from label on t.p.
Bibliography: p. 118-120.
071580569X 0715805703 (pbk.)
80487479
GB***
Deep diving.
Skin diving.
GV840.S78 / E45
797.2/3