American, P. A. (2011). Publication Manual of the american psycological association. APA.
Citazione stile Chigago Style (17a edizione)American, Psychological Association. Publication Manual of the American Psycological Association. APA, 2011.
Citatione MLA (9a ed.)American, Psychological Association. Publication Manual of the American Psycological Association. APA, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.