this is a hardback book titled " committee for co- ordination of joint prospecting for mineral resources in asian offshore areas - ccop " this is a technical bulletin vol 19 . this has 124 pages of information and is well illustrated ! some of the contents include, japan - indonesia cooperative survey in the sunda forearc, geomorphological features in the eastern sunda trench, refraction survey by sonobuoy in the sunda trench area , deep - towed sonar and camera observations at the sunda forearc region south of west java. and much more ! this is in nice clean condition with no inscriptions