TY  - BOOK
AU  - Block,S.
AU  - Hubbard,C.R.
ED  - United States.
TI  - Accuracy in powder diffraction
U1  - 671.87 
PY  - 1980///
CY  - Washington, D.C.
PB  - United States Government Printing Office
KW  - Powder
KW  - Powder diffraction
N1  - Description based on: 1979; Library has pt.1; Part 1. Surface water records
ER  -