TY  - BOOK
AU  - Hovsepyan,Lilia
AU  - Amiryan,V.
AU  - Mughnetsyan,L
ED  - Ministry of Education and science
ED  - State engineering university of Armenia (Politechnic) (Gyumri braanch)
TI  - Practise your English: (Educational methodical guide) 
SN  - 9789939554792
PY  - 2010///
CY  - Yerevan
PB  - Chartaraget
KW  - English language
KW  - Textbooks for foreign speakers
ER  -