Šedivé vlasy profesor pracující s přenosným počítačem - Stock fotografie a obrázky

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

Grey hair professor looking at laptop

Grey hair professor sitting in empty lecture room with crossed arms

Grey hair professor talking by smartphone and looking at laptop

Grey hair professor yawning in empty lecture room

Grey hair professor sitting on desk in empty lecture room and using laptop

Grey hair professor stretching in empty lecture room

Smiling grey hair professor sitting on desk in empty lecture room and talking by smartphone

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

Handsome senior writer working with laptop and making notes in notebook

Thoughtful senior man looking at laptop

Thoughtful senior writer working with laptop

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

Adult son using laptop and senior father reading business newspaper at home

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

Close-up shot of senior man using laptop

Side view of handsome grey hair man using laptop at home

Serious senior writer working with laptop and making notes in notebook