APA Style
Case, K, E, [, A.
(c2017).
Principles of microeconomics
(
12th ed.)
.
Boston, USA:
Pearson Education Limited.
MLA Style
Case, Karl, E., [et, Al]..
"Principles of microeconomics".
12th ed.
Boston, USA:
Pearson Education Limited,
c2017.
Text.