English for the Students of Natural Sciences : Academic manual /
English for the Students of Natural Sciences : Ուսումնական ձեռնարկ
H. Ghazaryan ; MES, SEUA. Cent. of languages. Dep. of Foreign Languages.
- Yerevan : Chartaraget, 2014.
- 154 p. ; 20 cm.
- 42-8(075.8) (NLA) .