Cita APA

Walls, C., & Breidenbach, R. (2008). Spring in action (2a. ed.). Manning Publications Co.

Citación estilo Chicago

Walls, Craig, and Ryan Breidenbach. Spring in Action. 2a. ed. Greenwich: Manning Publications Co, 2008.

Cita MLA

Walls, Craig, and Ryan Breidenbach. Spring in Action. 2a. ed. Manning Publications Co, 2008.