Gaya APA

郭熙安, ., Richard, G, M, , (. (2020). What Is Faith? = 何謂信心? (First). Taipei City (台北市: 改革宗出版有限公司.

Gaya MLA

郭熙安, ., Richard, Guy, M., , (凱伊,理査). "What Is Faith? = 何謂信心?". First Taipei City (台北市: 改革宗出版有限公司, 2020. Text.