Barth, K. (1963). Evangelical theology: An introduction. William B Eerdman.
Lua i Stíl Chicago (17ú heag.)Barth, Karl. Evangelical Theology: An Introduction. Grand rapids: William B Eerdman, 1963.
Lua MLA (9ú heag.)Barth, Karl. Evangelical Theology: An Introduction. William B Eerdman, 1963.
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