APA Style
spencer, david e.. (1990).
Study guide : Parkin economics .
:
Addison-Wesley.
Chicago Style
spencer, david e..
Study guide : Parkin economics.
:
Addison-Wesley,
1990.
Text.
MLA Style
spencer, david e..
Study guide : Parkin economics.
:
Addison-Wesley,
1990.
Text.
Turabian Style
spencer, david e..
Study guide : Parkin economics.
:
Addison-Wesley,
1990.
Print.