Odum, Eugene P . Fundamentals of Ecology / Textual Documents Eugene P.Odum & Gary W.Barrett. - Ist ed / - New Delhi : Cengaga Learning India Pvt.Ltd , 2005. - 598p ; 24cm. ISBN: 10:81-315-0020-9 Subjects--Index Terms: Ecology Dewey Class. No.: 577 / Od 8 Fu