Gaya APA
Steel designers manual
.
(1972).
:
Crosby.
Gaya Chicago
Steel designers manual
.
.
:
Crosby,
1972.
.
Gaya MLA
Steel designers manual
.
.
:
Crosby,
1972.
.
Gaya Turabian
Steel designers manual
.
:
Crosby,
1972.
.