Vasilenko, E Russian verb aspects / E. Vasilenko, A. Yegorova, E. Lamm. - 2nd ed. - Moscow : Russky Yazyk , 1988. - 227 p. : ill. ; 22 cm. ISBN: 5200000467 Subjects--Topical Terms: Russian language--Aspect.Russian language--Textbooks for foreign speakers--English. Dewey Class. No.: 491.78 VAS