English grammar and usage : academic manual /
Mnatsakanyan, L.
English grammar and usage : academic manual / by L. Mnatsakanyan, H.S. Ghajoyan; Ministry of education and science ;National Polytechnic University of Armenia. - Yerevan : Chartaraget, 2015. - 263 p. ; 20 cm. - 42-8(075.8) (NLA) .
978-9939-72-262-7
English language--Text-books for foreigners
42-8(075.8) (NLA)
English grammar and usage : academic manual / by L. Mnatsakanyan, H.S. Ghajoyan; Ministry of education and science ;National Polytechnic University of Armenia. - Yerevan : Chartaraget, 2015. - 263 p. ; 20 cm. - 42-8(075.8) (NLA) .
978-9939-72-262-7
English language--Text-books for foreigners
42-8(075.8) (NLA)