Gaya APA
Langley, Andrew. (1993).
Steel: Resources .
:
Thomson Learning.
Gaya Chicago
Langley, Andrew.
Steel: Resources.
:
Thomson Learning,
1993.
Reference.
Gaya MLA
Langley, Andrew.
Steel: Resources.
:
Thomson Learning,
1993.
Reference.
Gaya Turabian
Langley, Andrew.
Steel: Resources.
:
Thomson Learning,
1993.
Reference.