Bill Friman. (1993). Environmental ecology: The ecological effects of pollution, disturbance, and other stresses. San Diego, California: Academic.
শিকাগো স্টাইলে সাইটেশনBill Friman. Environmental Ecology: The Ecological Effects of Pollution, Disturbance, and Other Stresses. San Diego, California: Academic, 1993.
এমএলএ সাইটেশনBill Friman. Environmental Ecology: The Ecological Effects of Pollution, Disturbance, and Other Stresses. San Diego, California: Academic, 1993.
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