Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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