Cita APA

Johnson, J. M., & Keeley, S. M. Doing field research. New York US: The Free Press.

Citación estilo Chicago

Johnson, John M., y Stuart M. Keeley. Doing Field Research. New York US: The Free Press.

Cita MLA

Johnson, John M., y Stuart M. Keeley. Doing Field Research. New York US: The Free Press.