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A guide to the study of soil ecology. /

Fundamentals of soil science /

Washington Science Trends.

BioMEMS : science and engineering perspectives /

Soils and soil fertility.

BioNMR /

Bio-technology /

Citybac™ BIO.

Bio hnojivá.

Assembler, BIOS. 1. část /

Assembler, BIOS. 2. část /

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Bio & life : bio, eko, nature, časopis, ktorý má obsah.

New trends in the biological and ecological research : [scientific conference with international participation on the occasion of the 15th anniversary of University in Presov, Slovak Republic : proceedings : November 8-10, 2012, Grand Hotel Kempinski, High Tatras, Slovak Republic] /

Tropical ecological systems : trends in terrestrial and aquatic research /

New trends in the biological and ecological research : scientific conference with international participation on the occasion of the 15th anniversary of University in Prešov, Slovak republic : book of abstracts : November 8-10, 2012 Grand Hotel Kempinski High Tatras, Slovak Republic /

Ecology.

The bio- ecological trend in soil science /