Diagnostic and statistical manual of mental disorders : DSM-IV-TR.

Diagnostic and statistical manual of mental disorders : DSM-IV-TR.

The Canadian system of soil classification

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Genera of the trichoptera of Canada and adjoining or adjacent United States por Schmid, F. U. (Franz Urs)

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The poverty of the Linnaean hierarchy a philosophical study of biological taxonomy / por Ereshefsky, Marc

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Checklist of the Hemiptera of Canada and Alaska

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Style and function conceptual issues in evolutionary archaeology /

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Descriptions and prescriptions values, mental disorders, and the DSMs /

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Guide to standard floras of the world an annotated, geographically arranged systematic bibliography of the principal floras, enumerations, checklists, and chorological atlases of d... por Frodin, D. G.

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Le système canadien de classification des sols

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A Catalog of Scolytidae and Platypodidae (Coleoptera). por Bright, Donald E.

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Taxonomy, evolution and biostratigraphy of conodonts from the Kechika Formation, Skoki Formation, and Road River Group (Upper Cambrian to Lower Silurian), Northeastern British Colu... por Pyle, Leanne J.

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Ranking hazardous-waste sites for remedial action

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Technical issues

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Performance assessment for the workplace.

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Green plants their origin and diversity / por Bell, Peter Robert

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Igneous rocks a classification and glossary of terms : recommendations of the International Union of Geological Sciences, Subcommission on the Systematics of Igneous Rocks /

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Gentianaceae systematics and natural history /

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Cycad classification concepts and recommendations /

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Maritime communities and vegetation of open habitats

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