ebrary, Inc, Maxwell, D., & Schubert, K. (1989). Interlinguistics: Aspects of the science of planned languages. Mouton de Gruyter.
芝加哥风格引文ebrary, Inc, Dan Maxwell, 与 Klaus Schubert. Interlinguistics: Aspects of the Science of Planned Languages. Berlin ; New York: Mouton de Gruyter, 1989.
MLA引文ebrary, Inc, et al. Interlinguistics: Aspects of the Science of Planned Languages. Mouton de Gruyter, 1989.
警告：这些引文格式不一定是100％准确.