1975, United States Commission on Civil Rights, A Better Chance to Learn - Bilingual Bicultural Education, Volume 51, page 112:
Finally, many children speak a nonstandard variety of their native language even though they understand the standard variety, which is the language of wider communication.
↑ 1.01.1Ulrike Vogl (2012) “Multilingualism in a standard language culture”, in Matthias Hüning, Ulrike Vogl, Olivier Moliner, editors, Standard Languages and Multilingualism in European History (Multilingualism and diversity management)[1], volume 1, John Benjamins Publishing, →ISBN, page 15