En marcha
Subtitle: español para niveles intermedios
By: Pablo Valencia, Susan Cameron Bacon.
Contributors: Bacon, Susan Cameron.
Edition: Student's ed.
Publisher: Houghton Mifflin
Published: 1983
Place of publication: Boston
Language: spa
Number of pages: 374
Subjects: Spanish language -- Grammar.; Spanish language -- Textbooks for foreign speakers -- English.
Notes: Bibliography: p. 347-348.
Introd. in English.
Includes index.