TY  - BOOK
AU  - Brown H.Douglas
TI  - principles of language learning and teaching
SN  - 0137092954 (pbk.).
AV  - (KWP11) P51 
PY  - 1980///
CY  - Englewood Cliffs, NJ
PB  - Prentice-Hall,
KW  - Language and languages - Study and teaching
KW  - Language acquisition
N1  - includes bibliographical references and index
ER  -