Skin and scuba diving; fundamentals
Harper, Donald D.
Skin and scuba diving; fundamentals [by] Donald D. Harper. - Columbus, Ohio C. E. Merrill Pub. Co. 1968. - vii, 88 p. illus. - The Merrill sports series .
Bibliography: p. 75.
68008380
Skin diving
Scuba diving
GV840.S78 / H3
797.23
Skin and scuba diving; fundamentals [by] Donald D. Harper. - Columbus, Ohio C. E. Merrill Pub. Co. 1968. - vii, 88 p. illus. - The Merrill sports series .
Bibliography: p. 75.
68008380
Skin diving
Scuba diving
GV840.S78 / H3
797.23