Nippold, M. A. (1988). Later language development: Ages 9 through 19. Little, Brown.
Lua i Stíl Chicago (17ú heag.)Nippold, Marilyn A. Later Language Development: Ages 9 Through 19. Boston: Little, Brown, 1988.
Lua MLA (9ú heag.)Nippold, Marilyn A. Later Language Development: Ages 9 Through 19. Little, Brown, 1988.
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