References

Met WWC standards with reservations

Carlo, M. S., August, D., McLaughlin, B., Snow, C. E., Dressler, C., Lippman, D. N., Lively, T., & White, C. E. (2004). Closing the gap: Addressing the vocabulary needs of English-language learners in bilingual and mainstream classrooms. Reading Research Quarterly, 39, 188–215.

Additional sources:

McLaughlin, B., August, D., Snow, C., Carlo, M., Dressler, C., White, C., Lively, T., & Lippman, D. (2000, April). Vocabulary Improvement in English language learners: An Intervention Study. Symposium presented at the National Clearinghouse for English Language Acquisition, Washington, DC.