Cross-Language Information Retrieval.
Grefenstette, Gregory. Kluwer Academic Press. 1998.

Cross-Language Information Retrieval.
Doug Oard, Anne Diekema.
Annual Review of Information Science and Technology. 33. 1998. 223-256.

Cross-Language Text and Speech Retrieval: Papers from the 1997 AAAI Spring Symposium.
David Hull, Doug Oard.
AAAI Press. Technical Report SS-97-05. 1997.

Cross-language information retrieval means using queries in one language to search for documents in a different language. Multilingual information retrieval is a broader term, which includes the case where queries in different languages are used, but only for searching documents in the same language.