APA (7 वां संस्करण) प्रशस्ति पत्र

Smith, R. W. (2013). LPIC-1: Linux Professional Institute Certification study guide (3rd ed.). John Wiley & Sons, Inc..

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Smith, Roderick W. LPIC-1: Linux Professional Institute Certification Study Guide. 3rd ed. Indianapolis: John Wiley & Sons, Inc., 2013.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Smith, Roderick W. LPIC-1: Linux Professional Institute Certification Study Guide. 3rd ed. John Wiley & Sons, Inc., 2013.