The Soil ecosystem: systematic aspects of the environment, organisms, and communities a symposium Sheals, John Gordon ed. text bibliography conference publication enk London Systematics Association c1969 1969 monographic eng
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xi, 247 p. : illus.; 26 cm. edited for the Systematics Association by J. G. Sheals. Includes bibliographies. Soil ecology Congresses Soil animals Congresses Soil microbiology Congresses QH83 .A8 no. 8 634.94 SHS 0902551000 70508988 DLC 701026 20150107154248.0 294634