German in 20 lessons, intended for self-study and for use in schools : with a simplified system of phonetic pronunciation : based on the method of R. Diez de la Cortina /
by Eva C. Lange.
- 7th ed. completely rev.
- New York : Garden City, N.Y. : R.D. Cortina Co. ; Distributors, Doubleday, 1977.
- 360 p. : ill. ; 21 cm.
- Cortina method A Dolphin book .
First-6th ed. published under title: Cortina's German in 20 lessons.
German language--English.--Textbooks for foreign speakers Alemán--Textos para extranjeros--Ingleses. Alemán.--Gramática. Inglés--Gramática. Primera Jormada de Catalogacion.