3 public-domain matches

Low Fluence

Cover of Plant Embryogenesis

Plant Embryogenesis

Unknown author

Cover of Technologies of Coatings and Surface Hardening for Tool Industry

Technologies of Coatings and Surface Hardening for Tool Industry

Unknown author

Cover of The Effects of LED Light Spectra and Intensities on Plant Growth

The Effects of LED Light Spectra and Intensities on Plant Growth

Unknown author