Cita APA (7a ed.)
Wall, W., Olson, W. C., & Schonell, F. (1962). Failure in school: An international study.
Cita estilo Chicago (17a ed.)
Wall, W.D, Willard C. Olson, y F.J Schonell. Failure in School: An International Study. 1962.
Cita MLA (9a ed.)
Wall, W.D, et al. Failure in School: An International Study. 1962.
Precaución: Estas citas no son 100% exactas.