Harmaat hiukset professori katselee kannettavaa - Kuvapankin valokuva ja kuva

Grey hair professor talking by smartphone and looking at laptop

Smiling grey hair professor sitting in empty lecture room with laptop

Grey hair professor sitting in empty lecture room and looking at laptop

Grey hair professor working with laptop

Grey hair professor holding apple and using laptop

Grey hair professor yawning in empty lecture room

Grey hair professor sitting in empty lecture room with crossed arms

Senior lecturer in empty lecture room holding laptop and looking at camera

Senior lecturer in empty lecture room screaming and looking at laptop

Side view of handsome grey hair man using laptop at home

Cropped image of grey hair man using laptop at home

Handsome grey hair man sitting on sofa in living room and using laptop

Cropped image of grey hair man using laptop on sofa at home

Handsome senior writer working with laptop and making notes in notebook

Handsome grey hair man sitting on sofa and using laptop

Thoughtful senior man looking at laptop

Close-up shot of senior man using laptop

Shocked senior man looking at laptop isolated on grey