Active English /
Porter, Patricia A. 1939-
Active English / Patricia A. Porter, Allen W. Sharp - Englewood Cliffs, N.J. : Prentice-Hall, 1977 - v. : ill. ; 28 cm.
Book 3, book 1 : understand, practice, communicate
0130034002
76-56230
English language--Textbooks for foreigners
Active English / Patricia A. Porter, Allen W. Sharp - Englewood Cliffs, N.J. : Prentice-Hall, 1977 - v. : ill. ; 28 cm.
Book 3, book 1 : understand, practice, communicate
0130034002
76-56230
English language--Textbooks for foreigners
