APA (7th ed.) Citation

Humboldt, W. F. v. (1971). Linguistic variability and intellectual development. University of Miami Press.

Chicago Style (17th ed.) Citation

Humboldt, Wilhelm Freiherr von. Linguistic Variability and Intellectual Development. Coral Gables, Fla: University of Miami Press, 1971.

MLA (9th ed.) Citation

Humboldt, Wilhelm Freiherr von. Linguistic Variability and Intellectual Development. University of Miami Press, 1971.