DATABASES RECORDED ON MAGNETIC MEDIA CONTAINING NEWSLETTERS, REPORTS, AND DIRECTORIES FOR USE IN THE CONSTRUCTION FIELD

NEWSLETTERS, REPORTS AND DIRECTORIES OF INFORMATION SOURCES FOR THE CONSTRUCTION INDUSTRY

BUSINESS INFORMATION MANAGEMENT CONSULTING SERVICES FOR THE CONSTRUCTION INDUSTRY

COMMUNICATION SERVICES, NAMELY, ELECTRONIC TRANSMISSION OF INFORMATION SOURCES RELATING TO THE CONSTRUCTION FIELD

EDUCATIONAL SERVICES, NAMELY CONDUCTING SEMINARS FOR MANAGEMENT IN THE CONSTRUCTION FIELD