TY  - BOOK
AU  - Megaw,Helen D.
TI  - Crystal structures: a working approach 
T2  - Studies in physics and chemistry
SN  - 0721662609
AV  - QD905.2 M43
PY  - 1973///
CY  - Philadelphia
PB  - W. B. Saunders
KW  - Cristalografía
ER  -