APA aipamena

Puerto Rico. Commonwealth Board of Elections. (1983). Results of elections, San Juan, 1904-1980.

Chicago Style aipamena

Puerto Rico. Commonwealth Board of Elections. Results of Elections, San Juan, 1904-1980. 1983.

MLA aipamena

Puerto Rico. Commonwealth Board of Elections. Results of Elections, San Juan, 1904-1980. 1983.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.