TY  - BOOK
AU  - Harmer, Jeremy
TI  - Essential teacher knowledge: core concepts in English language teaching 
SN  - 9781408268049
AV  - PE 1128 .A2 H375E
PY  - 2012///
CY  - Harlow
PB  - Pearson
KW  - English language
KW  - Study and teaching
KW  - Foreign speakers
ER  -