Ahmad Ismail. Comparison of phytoplankton Communities in plastic lined ponds containing organic and inorganic fertilizers. Western Illinois University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ahmad Ismail. Comparison of Phytoplankton Communities in Plastic Lined Ponds Containing Organic and Inorganic Fertilizers. Illinois: Western Illinois University.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ahmad Ismail. Comparison of Phytoplankton Communities in Plastic Lined Ponds Containing Organic and Inorganic Fertilizers. Western Illinois University.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.