Gaya APA
WEGST, C.
(1977).
Stahlschlüssel 1977 page 1-158
(
1)
.
Germany:
Stahlschlussel.
Gaya MLA
WEGST, C.W..
"Stahlschlüssel 1977 page 1-158".
1
Germany:
Stahlschlussel,
1977.
Printed.