APA (7 वां संस्करण) प्रशस्ति पत्र

DEGRAFF JEFF. (2006). CREATIVITY AT WORK: DEVELOPING THE RIGHT PRACTICES TO MAKE INNOVATION HAPPEN. JOSSEY-BASS.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

DEGRAFF JEFF. CREATIVITY AT WORK: DEVELOPING THE RIGHT PRACTICES TO MAKE INNOVATION HAPPEN. SAN FRANCISCO: JOSSEY-BASS, 2006.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

DEGRAFF JEFF. CREATIVITY AT WORK: DEVELOPING THE RIGHT PRACTICES TO MAKE INNOVATION HAPPEN. JOSSEY-BASS, 2006.