Research that includes bilingual topics is interdisciplinary - interweaving with all disciplines, depending on the direction of the research. These resources can be found in the Libraries' collections.
Most Education books, related to pedagogy and the such, are in call number area LC on Stack/Floor 2. Some information on bilingual education may be located in the call number area Gov Docs ED, government documents, and are housed in our basement. Children and YA books are located in PZ and sometimes PS (stacks/Floor 4) depending on topics covered.
The e-book collections listed here are interdisciplinary. To search these resources, try different combinations of searches and keywords.
Example, "bilingual education" or "multicultural education."