TY  - BOOK
AU  - Hogan,William
TI  - Safe scuba
PY  - 1973///, c 1971
CY  - [Palos Verdes, Calif.]
PB  - National Association of Skin Diving Schools
KW  - Scuba apparatus
N1  - Bibliography: p. 111
UR  - http://www.archive.org/details/safescuba00hoga
UR  - http://www.openlibrary.org/books/OL24218757M
ER  -