TY  - RPRT
TI  - Proceedings of workshop on asbestos : definitions and measurement methods
AU  - Gravatt, C C
AU  - LaFleur, Philip D
AU  - Heinrich, Kurt F J
PY  - 1978
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 506
DO  - 10.6028/NBS.SP.506
ER  -