APA (7 वां संस्करण) प्रशस्ति पत्र

(1997). Signposts of God's liberating kingdom: Perspectives for the 21st century. Potchefstroom University for christian higher education.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Signposts of God's Liberating Kingdom: Perspectives for the 21st Century. Potchefstroom: Potchefstroom University for christian higher education, 1997.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Signposts of God's Liberating Kingdom: Perspectives for the 21st Century. Potchefstroom University for christian higher education, 1997.