For all examples use the same author notation in the list of references at the end.
For webpages use the organisation or company author:-
For newspaper or magazine articles use the newspaper or magazine title:
For films, use the title of the film:
For a dictionary or encyclopaedia, if the co-operative work of many authors, none of whom are a main editor, the title of the work may be used instead:
Use of ‘Anon.’ is permitted only as a very last resort if you cannot use a named author or organization.