Krahnke, K. (1987). Approaches to syllabus design for foreign language teaching. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Krahnke, Karl. Approaches to Syllabus Design for Foreign Language Teaching. Englewood Cliffs, N.J: Prentice-Hall, 1987.
Lua MLA (9ú heag.)Krahnke, Karl. Approaches to Syllabus Design for Foreign Language Teaching. Prentice-Hall, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.