frogman military manual USSR navy diver diving bathyscaphe soviet Russian

Description

USSR
Diving equipment of the Navy
military publishing house Moscow   1990
Ministry of Defense of the USSR
216 pages   number of drawings
brief information about the physical and physiological characteristics of diving
given in great detail the classification and description of modern diving equipment   and means of ensuring underwater work
seller's note :
it  is not fiction  it is  military reference
this book was not commercially available and has no sale price
in
Russian
You can  ask additional questions for example -is the underwater communication facility described ? or how detailed the underwater blasting operations are described?...........