{{cite journal | last1=Mahmood | first1=N. | author2=B. Ahmad | author3=S. Hassan | author4=K. Bakhsh | year=2012 | title=IMPACT OF TEMPERATURE ADN PRECIPITATION ON RICE PRODUCTIVITY IN RICE-WHEAT CROPPING SYSTEM OF PUNJAB PROVINCE | journal=Journal of Animal and Plant Sciences | volume=22 | issue=4 | pages=993-997 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2012-JAPS-429}}