Bill Friman. (1993). Environmental ecology: The ecological effects of pollution, disturbance, and other stresses. San Diego, California: Academic.
استشهاد بنمط شيكاغوBill Friman. Environmental Ecology: The Ecological Effects of Pollution, Disturbance, and Other Stresses. San Diego, California: Academic, 1993.
MLA استشهادBill Friman. Environmental Ecology: The Ecological Effects of Pollution, Disturbance, and Other Stresses. San Diego, California: Academic, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.