APA (7 वां संस्करण) प्रशस्ति पत्र

Hinzen, H., & Knoll, J. H. (2009). Adult education and continuing education policy: Science in between society and politics. Bonn.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Hinzen, Heribert, और Jooachim H. Knoll. Adult Education and Continuing Education Policy: Science in Between Society and Politics. Poland: Bonn, 2009.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Hinzen, Heribert, और Jooachim H. Knoll. Adult Education and Continuing Education Policy: Science in Between Society and Politics. Bonn, 2009.