Cita APA (7a ed.)

(1989). Interlinguistics: Aspects of the science of planned languages. Mouton de Gruyter.

Cita Chicago Style (17a ed.)

Interlinguistics: Aspects of the Science of Planned Languages. Berlin ; New York: Mouton de Gruyter, 1989.

Cita MLA (9a ed.)

Interlinguistics: Aspects of the Science of Planned Languages. Mouton de Gruyter, 1989.