TY  - BOOK
AU  - Karapetian,K.M.
AU  - Grigorian,Vatchick G.
ED  - Yerevan State University
TI  - English for students of natural sciences
PY  - 1997///
CY  - Yerevan
PB  - Yerevan State University Press
KW  - English language
KW  - Natural sciences
KW  - Английский язык
ER  -