APA Style
Wonnacott, P., Wonnacott, R. (1982).
An Introduction to Macroeconomics (2).
United states of America:
McGraw-Hill.
MLA Style
Wonnacott, Paul., Wonnacott, Ronald.
"An Introduction to Macroeconomics".
2
United states of America:
McGraw-Hill,
1982.
Text.