Cita APA (7a ed.)

Greenlaw, S. A., & Shapiro, D. (2014). Principles of Macroeconomics. OpenStax College, Rice University.

Cita Chicago Style (17a ed.)

Greenlaw, Steven A., y David Shapiro. Principles of Macroeconomics. Houston, Texas: OpenStax College, Rice University, 2014.

Cita MLA (9a ed.)

Greenlaw, Steven A., y David Shapiro. Principles of Macroeconomics. OpenStax College, Rice University, 2014.