Smith George F.
Productivity in building - 1970. - 22-23. - The illustrated carpenter and builder, Vol. 160,Jan. 16, 1970. .
Photocopy.
CONSTRUCTION INDUSTRY-PRODUCTIVITY
BUILDINGS-PRODUCTIVITY
EMPLOYMENT
69 / S6
Productivity in building - 1970. - 22-23. - The illustrated carpenter and builder, Vol. 160,Jan. 16, 1970. .
Photocopy.
CONSTRUCTION INDUSTRY-PRODUCTIVITY
BUILDINGS-PRODUCTIVITY
EMPLOYMENT
69 / S6