TY  - RPRT
TI  - Metrics and tools for measuring construction productivity : technical and empirical considerations
AU  - Huang, Allison L
AU  - Chapman, Robert E
AU  - Butry, David T
PY  - 2009
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 1101
DO  - 10.6028/NIST.SP.1101
ER  -