Concise AACR2: 25. Works for which two or more persons or corporate bodies are reponsible

Apply this rule to:

1. works produced by two or more persons (joint authors, collaborators, etc.)
2. works for which two or more persons have prepared separate contributions (including the records of debates and discussions)
3. works consisting of letters, etc., exchanged by two or more persons.
4. works issued by, or originating from, two or more corporate bodies and that fall into one of more of the categories listed in rule 23B2.

For works consisting of collections of, or selections from, already existing works (such as anthologies), see rule 26.

For special types of collaboration, see rule 27.

If the layout or wording of the chief source of information of a bibliographic resource that is a manifestation of a work by two or more persons or bodies indicates clearly that one person or body is chiefly responsible, enter under the heading for that person or body. Make added entries under the headings for the other persons or bodies if there are not more than two of them.

If two or three persons or bodies are shown as being principally resonsible, enter under the heading for the one named first. Make added entries under the headings for the others.

If, in the case of a work by two or three persons or bodies, no one person or body is clearly principally responsible (see rule 25B), enter under the heading for the one named first. Make added entries under the headings for the others.

If, in the case of a work by four or more persons or bodies, none of the persons or bodies is clearly principally responsible (see rule 25B), enter under the title. Make an added entry under the heading for the first person or body named in the chief source of information.