How do I obtain permission for copyrighted materials
One should first determine who is the copyright owner of the quotation, image, video, audio recording, or other copyrighted material
Then, one needs to contact the copyright owner (for instance the owner of the website where one found the material) whether they are the copyright owner or where they obtained permission to use the material.
In the case of a publisher, one should contact the publisher to determine how to obtain permission
Always specify in correspondence how you intend to use the material
Always document and save the results of your search (e-mails, responses, etc.)