Gaya APA
Johnson, Christopher. (1988).
Measuring the Economy .
USA:
Penguin Books.
Gaya Chicago
Johnson, Christopher.
Measuring the Economy.
USA:
Penguin Books,
1988.
Text.
Gaya MLA
Johnson, Christopher.
Measuring the Economy.
USA:
Penguin Books,
1988.
Text.
Gaya Turabian
Johnson, Christopher.
Measuring the Economy.
USA:
Penguin Books,
1988.
Print.