APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.