If you use author-date in-text citations, order your references list alphabetically by the last name of the first author. For multiple references with the same author or first author, list the single-author references first, then the two-author citations, and the group citations last.
Order of Works with Same First Author
Hamilton, F. J. Biochemistry 2003, 42, 78-86.
Hamilton, F. J. J. Agric. Food Chem. 2004, 52, 1622-1633.
Hamilton, F. J. J. Agric. Food Chem. 2004a, 52, 1622-1633.
Hamilton, F. J. J. Org. Chem. 2004b, 69, 298-306.
Scarponi, T. M.; Moreno, S. P. Biochemistry 2002, 41, 345-360.
Scarponi, T. M.; Adams, J. S. J. Pharm. Sci. 2003, 92, 703-712.
Order of Works by Authors with Same Last Name
Alphabetize by first initial.
Moher, M., & Feigenson, L.
Order of Works by Group Authors
Alphabetize by the first significant word; do not abbreviate name.
National Institute of Mental Health.
Oliver, M. B.