Gaya APA
Wonnacott, Paul, Wonnacott, Ronald. (1985).
Economics (2e).
Singapore:
McGraw Hill.
Gaya Chicago
Wonnacott, Paul, Wonnacott, Ronald.
Economics.
2e
Singapore:
McGraw Hill,
1985.
Buku.
Gaya MLA
Wonnacott, Paul, Wonnacott, Ronald.
Economics.
2e
Singapore:
McGraw Hill,
1985.
Buku.
Gaya Turabian
Wonnacott, Paul, Wonnacott, Ronald.
Economics.
2e
Singapore:
McGraw Hill,
1985.
Buku.