APA-viite (7. p.)
ebrary, Inc, & Costada, P. N. (2009). Spain: Economic, political and social issues. Nova Science Publishers.
Chicago-viite (17. p.)
ebrary, Inc, ja Pablo N. Costada. Spain: Economic, Political and Social Issues. New York: Nova Science Publishers, 2009.
MLA-viite (9. p.)
ebrary, Inc, ja Pablo N. Costada. Spain: Economic, Political and Social Issues. Nova Science Publishers, 2009.
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