Franklin

MLA

Maria Dolores Villar Salinas, Angela Casanova Cabello, Carmen Guenaga Anchustegui, and Flora Casals Pons. Washington: [s.n.], 1961.

APA

(1961). Maria Dolores Villar Salinas, Angela Casanova Cabello, Carmen Guenaga Anchustegui, and Flora Casals Pons. Washington: [s.n.].

Chicago

Maria Dolores Villar Salinas, Angela Casanova Cabello, Carmen Guenaga Anchustegui, and Flora Casals Pons. Washington: [s.n.], 1961.