Cita APA

Smith, J. D., Ashby, F. G., Berg, M. E., Murphy, M. S., Spiering, B., Cook, R. G., & Grace, R. C. (2011). Pigeons’ Categorization May Be Exclusively Nonanalytic.

Citación estilo Chicago

Smith, J. David, F. Gregory Ashby, Mark E. Berg, Matthew S. Murphy, Brian Spiering, Robert G. Cook, y Randolph C. Grace. Pigeons’ Categorization May Be Exclusively Nonanalytic. 2011.

Cita MLA

Smith, J. David, et al. Pigeons’ Categorization May Be Exclusively Nonanalytic. 2011.