Ackland, D., & Freeburg, J. (1989). Insight guides: Texas /Diana Ackland and Jamie Freeburg. APA Pub.
Cita Chicago Style (17a ed.)Ackland, Diana, y Jamie Freeburg. Insight Guides: Texas /Diana Ackland and Jamie Freeburg. Singapore: APA Pub, 1989.
Cita MLA (9a ed.)Ackland, Diana, y Jamie Freeburg. Insight Guides: Texas /Diana Ackland and Jamie Freeburg. APA Pub, 1989.
Precaución: Estas citas no son 100% exactas.