Gaya APA
Metalworking. (1968).
USA:
The Goodheart-Willcox Company.
Gaya Chicago
Metalworking.
.
USA:
The Goodheart-Willcox Company,
1968.
.
Gaya MLA
Metalworking.
.
USA:
The Goodheart-Willcox Company,
1968.
.
Gaya Turabian
Metalworking.
USA:
The Goodheart-Willcox Company,
1968.
.