Kallenberg, B. J. (2013). By design: Ethics, theology, and the practice of engineering. Cascade Books.
Tohutoru Kātū Chicago (17th ed.)Kallenberg, Brad J. By Design: Ethics, Theology, and the Practice of Engineering. Eugene, Oregon: Cascade Books, 2013.
Tohutoro MLA (9th ed.)Kallenberg, Brad J. By Design: Ethics, Theology, and the Practice of Engineering. Cascade Books, 2013.
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