Steinpach, R. (1989). How is it that we live after death and what is ... Stiftung Gralsbotschaft.
芝加哥风格引文Steinpach, Richard. How Is It That We Live After Death and What Is ... Stuttgart: Stiftung Gralsbotschaft, 1989.
MLA引文Steinpach, Richard. How Is It That We Live After Death and What Is ... Stiftung Gralsbotschaft, 1989.
警告：这些引文格式不一定是100％准确.