APA (7 वां संस्करण) प्रशस्ति पत्र

Ul-Allah, S. (2013). Towards a water and nutrient efficient forage production in semi-arid regions of Pakistan. kassel university press GmbH.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ul-Allah, Sami. Towards a Water and Nutrient Efficient Forage Production in Semi-arid Regions of Pakistan. Kassel, Germany: kassel university press GmbH, 2013.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ul-Allah, Sami. Towards a Water and Nutrient Efficient Forage Production in Semi-arid Regions of Pakistan. kassel university press GmbH, 2013.