Cita APA (7a ed.)
Humboldt, W., Buch, G. C., & Raven, F. A. Linguistic variability: Intellectual development.
Cita Chicago Style (17a ed.)
Humboldt, Wilhelm, George C. Buch, y Frithjof A. Raven. Linguistic Variability: Intellectual Development.
Cita MLA (9a ed.)
Humboldt, Wilhelm, et al. Linguistic Variability: Intellectual Development.
Precaución: Estas citas no son 100% exactas.