Winston, Roger B. 1985. “A Suggested Procedure for Determining Order of Authorship In Research Publications.” Journal of Counseling & Development 63 (8): 515–18. doi:10.1002/j.1556-6676.1985.tb02749.x.

Interesting discussion of typology of credit and a point system attached to it. A nice alternative to the Fermilab approach perhaps!

Also has some Social Science bibliography from the 1980s on how to determine authorship credit.