Skelton, L., Jacob, S., Hendrickson, D., & Shaw, D. (2013). Exploring global issues: Social, Economic, and Environmental Interconnections: Student Text. Facing the Future.
Cita Chicago (17th ed.)Skelton, Laura, Sheeba Jacob, Danica Hendrickson, i Danielle Shaw. Exploring Global Issues: Social, Economic, and Environmental Interconnections: Student Text. Seattle, Washington, USA: Facing the Future, 2013.
Cita MLA (9th ed.)Skelton, Laura, et al. Exploring Global Issues: Social, Economic, and Environmental Interconnections: Student Text. Facing the Future, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.