Lua APA (7ú heag.)

Kelz, H. P. (1978). Language planning in Germany - a model for the Philippines? Philippine Journal of Linguistics.

Lua i Stíl Chicago (17ú heag.)

Kelz, Heinrich P. "Language Planning in Germany - a Model for the Philippines?" Philippine Journal of Linguistics 1978.

Lua MLA (9ú heag.)

Kelz, Heinrich P. "Language Planning in Germany - a Model for the Philippines?" Philippine Journal of Linguistics, 1978.

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