Frankel, E. G. (1995). Ocean environmental management: :a primer on the role of the oceans and how to maintain their contributions to life on earth. PHI.
استشهاد بنمط شيكاغوFrankel, Ernst G. Ocean Environmental Management: :a Primer on the Role of the Oceans and How to Maintain Their Contributions to Life on Earth. U S A: PHI, 1995.
MLA استشهادFrankel, Ernst G. Ocean Environmental Management: :a Primer on the Role of the Oceans and How to Maintain Their Contributions to Life on Earth. PHI, 1995.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.