The NECA manual of labor units.

The NECA manual of labor units.

Sonraí bibleagrafaíochta
Údar corparáideach: National Electrical Contractors Association
Formáid: LEABHAR
Teanga:English
Foilsithe / Cruthaithe: Bethesda, Md. National Electrical Contractors Association c1992.
Ábhair:
Electrical engineering > Estimates.