Barcelona, Catalonia, the Balearic Islands
MLA
Roca i Roca. Barcelona, Catalonia, the Balearic Islands. Barcelona: Thomas, 19.
APA
Roca i Roca, R. i Roca. (19). Barcelona, Catalonia, the Balearic Islands. Barcelona: Thomas.
Chicago
Roca i Roca Barcelona, Catalonia, the Balearic Islands: . Barcelona: Thomas, 19.