Gaya APA

MCCONELL, C, R. et al (2015). ECONOMICS: PRINCIPLES, PROBLEMS, AND POLICIES, 20E GLOBAL EDITION (GLOBAL EDITION). SINGAPURA: MC GRAW HILL EDUCATION.

Gaya MLA

MCCONELL, CAMBELL, R. et al. "ECONOMICS: PRINCIPLES, PROBLEMS, AND POLICIES, 20E GLOBAL EDITION". GLOBAL EDITION SINGAPURA: MC GRAW HILL EDUCATION, 2015. Text.