Gaya APA
Riddell, Tom. (1982).
Economics: a tool for understanding society .
London:
Addison-Wesley.
Gaya Chicago
Riddell, Tom.
Economics: a tool for understanding society.
London:
Addison-Wesley,
1982.
.
Gaya MLA
Riddell, Tom.
Economics: a tool for understanding society.
London:
Addison-Wesley,
1982.
.
Gaya Turabian
Riddell, Tom.
Economics: a tool for understanding society.
London:
Addison-Wesley,
1982.
.