Lua APA (7ú heag.)

Gerlach, V. S. (1971). Teaching and media: A systematic approach. Prentice-Hall.

Lua i Stíl Chicago (17ú heag.)

Gerlach, Vernon S. Teaching and Media: A Systematic Approach. Englewood Cliffs: Prentice-Hall, 1971.

Lua MLA (9ú heag.)

Gerlach, Vernon S. Teaching and Media: A Systematic Approach. Prentice-Hall, 1971.

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