Lua APA (7ú heag.)

Ward, H., & Roscoe, F. (1958). The approach to teaching. G. Bell.

Lua i Stíl Chicago (17ú heag.)

Ward, Herbert, agus Frank Roscoe. The Approach to Teaching. London: G. Bell, 1958.

Lua MLA (9ú heag.)

Ward, Herbert, agus Frank Roscoe. The Approach to Teaching. G. Bell, 1958.

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