TY  - BOOK
AU  - Lacy, Edward A.
AU  - xx, 686 p.
AU  - Title
TI  - The black opal
SN  - 0133773418
PY  - 1977///
CY  - New Jersey
PB  - Prentice-Hall
KW  - Electronic industries-safety measures
KW  - Electronics-safety measures
N1  - Includes bibliographies
ER  -