Pictures and pictorial collages. As a rule, the use of pictures other than those produced by the author themselves requires permission. In such a case, a picture taken from a book, article or web page is cited as described above. If the illustrator or photographer is a different person from the writer or editor of the online source and there is a mention of the photographer, the illustrator or photographer is mentioned in the bibliographic reference.
If pictorial collages are included as appendixes, they are referred to with the number of appendix in the text.