Cita APA (7th ed.)

Challis, B. H., & Velichkovskiĭ, B. M. (1999). Stratification in cognition and consciousness. J. Benjamins.

Cita Chicago (17th ed.)

Challis, Bradford H., i B. M. Velichkovskiĭ. Stratification in Cognition and Consciousness. Amsterdam ; Philadelphia: J. Benjamins, 1999.

Cita MLA (9th ed.)

Challis, Bradford H., i B. M. Velichkovskiĭ. Stratification in Cognition and Consciousness. J. Benjamins, 1999.