As an urban/landscape photographer, I have my online portfolio on a personal server. There one can read about me, browse my selected photographs and see a list of my references. The latter concerns me: what can be considered a valid photographer's reference?
I am employed to take photographs of a bakery. I send photographs in and get paid.
I am invited to take photographs of a bakery on a free-of-charge basis. So to say, I practice my skills on a real-world example, and the bakery later gets the photographs I made. They may turn out bad, but this isn't my concern in this case, since I do not get paid.
I ask permission to take a few photographs of the bakery. This action is done for my own purposes - practice, photo collection, or even simple fun. I will send photographs to the bakery's direction later, but I am not obliged to do so.
In which of these three cases may I place the name of the bakery and the link to their web site as my reference? And, first of all, may I do so in the third example?