Ul-Allah, S. (2013). Towards a water and nutrient efficient forage production in semi-arid regions of Pakistan. kassel university press GmbH.
Citazione stile Chigago Style (17a edizione)Ul-Allah, Sami. Towards a Water and Nutrient Efficient Forage Production in Semi-arid Regions of Pakistan. Kassel, Germany: kassel university press GmbH, 2013.
Citatione MLA (9a ed.)Ul-Allah, Sami. Towards a Water and Nutrient Efficient Forage Production in Semi-arid Regions of Pakistan. kassel university press GmbH, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.