Gaya APA
Robinson, Joan. (1971).
Exercises in economic analysis (text).
London:
Macmillan.
Gaya Chicago
Robinson, Joan.
Exercises in economic analysis.
text
London:
Macmillan,
1971.
.
Gaya MLA
Robinson, Joan.
Exercises in economic analysis.
text
London:
Macmillan,
1971.
.
Gaya Turabian
Robinson, Joan.
Exercises in economic analysis.
text
London:
Macmillan,
1971.
.