Mark, B. H., & Osborne, A. S. (2014). Worthy of the calling: Biographies of Paul and Lela Hostetler, Harvey and Erma Sider, Luke Jr. and Doris Keefer. Brethren in Christ Historical Society.
Chicago-čujuhus (17. p.)Mark, Beth Hostetler, juo AnnaRuth Sider Osborne. Worthy of the Calling: Biographies of Paul and Lela Hostetler, Harvey and Erma Sider, Luke Jr. and Doris Keefer. Mechanisburg, PA: Brethren in Christ Historical Society, 2014.
MLA-čujuhus (9. p.)Mark, Beth Hostetler, juo AnnaRuth Sider Osborne. Worthy of the Calling: Biographies of Paul and Lela Hostetler, Harvey and Erma Sider, Luke Jr. and Doris Keefer. Brethren in Christ Historical Society, 2014.
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