TY  - BOOK
AU  - Hulstijn,Jan Hendrik
TI  - Language proficiency in native and non-native speakers: theory and research 
T2  - Language learning & language teaching (LL&LT),
SN  - 9789027213259 (pbk.)
PY  - 2015///
CY  - Amsterdam
PB  - John Benjamins Pub.
KW  - Native language
KW  - Study and teaching
KW  - Language and languages
KW  - Foreign speakers
KW  - Ability testing
KW  - Psychological aspects
KW  - Language acquisition
KW  - Research
N1  - Includes bibliographical references and index
ER  -