00487nam a2200121 450000500170000000800410001702000130005805000170007124501630008826000750025130000190032670000200034520260616093351.0260616b |||||||| |||| 00| 0 eng d a05034299 aGC1.U36 1989 aCode of practice for scientific diving:bPrinciples for the safe practice, scientific diving in different environments /cedited by N.C. Flemming and M.D. Max bUnited Nations Educational, Scientific and Cultural Organizationc1988 axvi,251p.bHbk aMax, M.D. (ed.)