Villy Christensen & DanielPauly. (1993). Trophic Models of Aquatic Ecosystems. International centre for Living Acquatic Resources Management.
استشهاد بنمط شيكاغوVilly Christensen و DanielPauly. Trophic Models of Aquatic Ecosystems. Manila: International centre for Living Acquatic Resources Management, 1993.
MLA استشهادVilly Christensen و DanielPauly. Trophic Models of Aquatic Ecosystems. International centre for Living Acquatic Resources Management, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.