Gaya APA

McConnell, C, R. et al (2015). Economics: principles, problems, and policies ed. 1 (1). New York: Mc-GrawHill Education.

Gaya MLA

McConnell, Campbell, R.. et al. "Economics: principles, problems, and policies ed. 1". 1 New York: Mc-GrawHill Education, 2015. Text.