Harmaat hiukset professori puhuu älypuhelimella ja katsomalla kannettavaa - Kuvapankin valokuva ja kuva

Grey hair professor looking at laptop

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

Grey hair professor working with laptop

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

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

Grey hair professor yawning in empty lecture room

Smiling grey hair professor sitting in empty lecture room with laptop

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

Handsome senior writer working with laptop and making notes in notebook

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Side view of handsome grey hair man using laptop at home

Smiling handsome grey hair man talking by smartphone at table with laptop

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

Thoughtful senior writer working with laptop

Pensive handsome middle aged businessman in glasses working at laptop in office