Lua APA (7ú heag.)

Eggen, P. D. (1988). Strategies for teachers: Teaching content and thinking skills (2nd.ed.). Prentice-Hall.

Lua i Stíl Chicago (17ú heag.)

Eggen, Paul D. Strategies for Teachers: Teaching Content and Thinking Skills. 2nd.ed. Englewood Cliffs: Prentice-Hall, 1988.

Lua MLA (9ú heag.)

Eggen, Paul D. Strategies for Teachers: Teaching Content and Thinking Skills. 2nd.ed. Prentice-Hall, 1988.

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