TY  - BOOK
AU  - Ladd,M.F.C.
TI  - Theory and practice of direct methods in crystallography
SN  - 0306402238
U1  - 548 NT343 
PY  - 1980///
CY  - New York
PB  - Plenum Press
KW  - Chemistry
KW  - Crystallography
ER  -