APA

(1990). El Ave Maria. [Ponce, P.R.]: [Publisher not identified].

Chicago

1990. El Ave Maria. [Ponce, P.R.]: [Publisher not identified].

Harvard

(1990). El Ave Maria. [Ponce, P.R.]: [Publisher not identified].

MLA

El Ave Maria. [Ponce, P.R.]: [Publisher not identified]. 1990.