References
- O'Bryan , K.G. , Reity , J.G. and Kuplowska , O.M. 1976 . Non-Official Languages: A Study in Canadian Multiculturalism , Ottawa : Printing and Publishing Supply and Sources, Canada .
- Kalnins , I. 1979 . The Canadian Non-Official Languages Study: Implications for Baltic Language Retention . Journal of Baltic Studies , X : 5 – 9 .