APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.