Gaya APA
ESSEN, D, T.
(1988).
Werkstoffkunde 7
(
1st ed)
.
Switzerland:
DAG-Technikum.
Gaya MLA
ESSEN, DAG, TECHNIKUM.
"Werkstoffkunde 7".
1st ed
Switzerland:
DAG-Technikum,
1988.
Printed.