The integrated study of bird populations : proceedings of a symposium held in Wageningen, The Netherlands, 17-21 September 1979 /Publisher: New York : New York : North-Holland Pub. Co.,
Date: 1981. This title can be found in 1 Iowa libraries.
Structure and functioning of plant populations /Publisher: New York : New York : North-Holland,
Date: 1978. This title can be found in 1 Iowa libraries.
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