English tenses
Subtitle: a programmed course
By: by H. Liiv.
Edition: 2nd ed., rev.
Publisher: Tartu State University, Dept. of English
Published: 1977
Place of publication: Tartu
Language: eng
Number of pages: 83
Subjects: English language -- Textbooks for foreign speakers.; English language -- Tense.; English language -- Programmed instruction.