hollow block
hollow block
[′häl·ō ′bläk]hollow masonry unit
- international council on active aging
- international council on alcohol and addictions
- international council on alcohol, drugs and traffic safety
- international council on alcoholism and addiction
- international council on animal protection
- international council on animal protection at ich
- international council on animal protection in oecd
- international council on archives
- international council on biblical inerrancy
- international council on clean transportation
- international council on cultism and ritual trauma
- international council on disability awareness
- international council on education for teaching
- international council on english braille
- international council on food irradiation
- international council on health, physical education and recreation
- international council on human rights policy
- international council on infertility information dissemination
- international council on jewish social and welfare services
- international council on korean studies
- international council on main group chemistry
- international council on management of population programmes
- international council on metals and the environment
- international council on mining and metals
- integration youth services society