APA (7 वां संस्करण) प्रशस्ति पत्र

Keet, M. (2018). An Introduction to Ontology Engineering. Maria Keet.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Keet, Maria. An Introduction to Ontology Engineering. Cape Town, South Africa: Maria Keet, 2018.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Keet, Maria. An Introduction to Ontology Engineering. Maria Keet, 2018.