Cita APA (7th ed.)

Haarmann, H. (1986). Language in ethnicity: A view of basic ecological relations. Mouton de Gruyter.

Cita Chicago (17th ed.)

Haarmann, Harald. Language in Ethnicity: A View of Basic Ecological Relations. Berlin ; New York: Mouton de Gruyter, 1986.

Cita MLA (9th ed.)

Haarmann, Harald. Language in Ethnicity: A View of Basic Ecological Relations. Mouton de Gruyter, 1986.