EASTON, L. B., KLEIN, M., & ALLEN, H. B. (1984). Expressways: A basal language program. The Economy co.
Chicago-čujuhus (17. p.)EASTON, Lois Brown, Marvin KLEIN, juo Harold B. ALLEN. Expressways: A Basal Language Program. Oklahoma: The Economy co, 1984.
MLA-čujuhus (9. p.)EASTON, Lois Brown, et al. Expressways: A Basal Language Program. The Economy co, 1984.
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