Ayubi, E. L. (2020). Publication manual of the American Psychological Association (séptima edición.). American Psychological Association.
Chicago-čujuhus (17. p.)Ayubi, Emily L. Publication Manual of the American Psychological Association. séptima edición. Washington, D.C: American Psychological Association, 2020.
MLA-čujuhus (9. p.)Ayubi, Emily L. Publication Manual of the American Psychological Association. séptima edición. American Psychological Association, 2020.
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