Publication Manual of the American Psychological Association by 
The Chicago Manual of Style by Here you have examples of APA and Chicago Turabian Style citations and an example of how you can provide attribution for an image.
APA Book Citation
Pridham, G. (1988). Political parties and coalitional behaviour in italy. London;New York;: Routledge.
APA Journal Article Citation
Poli, M. D. (2016). The change of political parties in italy. Zeitschrift für Parlamentsfragen, 47(4), 800.
Chicago Turabian Book Citation
Pridham, Geoffrey. 1988. Political parties and coalitional behaviour in italy. London;New York;: Routledge.
Chicago Turabian Style Journal Article Citation
Poli, Maria Daniela. 2016. The change of political parties in italy. Zeitschrift für Parlamentsfragen 47 (4): 800.
Attribution (using an image from flickr)
"Brescia Italy" by IVAN 63 is licensed under CC BY-NC-ND 2.0
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