Provide surnames and initials for up to and including 20 authors. Where there are 2 to 20 authors, use an ampersand before the final author's name.
Where there are 21 or more authors, include the first 19 author's names, insert an ellipsis, but no ampersand, and then add the final author's name.
There is one space between initials.
APA Style Manual, page 286.
ARTICLE WITH MULTIPLE AUTHORS
TWO AUTHORS
Smith, P. & Toomey, P.
THREE AUTHORS
Middleton, J. M., Miller, T.C. & Brown, M. J.
FOUR AUTHORS
Lewis, F., Lee, L. H., Harris, H. L., & Green, G.
FIVE AUTHORS
Nelson, T. J., Perry, H., P., Turner, S., Kelly, B., & Evans, B. B.
Provide surnames and initials for up to and including 20 authors. Where there are 2 to 20 authors, use an ampersand before the final author's name.
Where there are 21 or more authors, include the first 19 author's names, insert an ellipsis, but no ampersand, and then add the final author's name.
There is one space between initials.
APA Style Manual, page 286.
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