Cooper, G. J. (2003). The science of the struggle for existence: On the foundations of ecology. Cambridge: Cambridge University Press.
শিকাগো স্টাইলে সাইটেশনCooper, Gregory John. The Science of the Struggle for Existence: On the Foundations of Ecology. Cambridge: Cambridge University Press, 2003.
এমএলএ সাইটেশনCooper, Gregory John. The Science of the Struggle for Existence: On the Foundations of Ecology. Cambridge: Cambridge University Press, 2003.
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