APA

Madrigal M., Madrigal E., . (1943). An invitation to spanish. New York: Simon and Schuster.

Chicago

Madrigal Margarita, Madrigal Ezequías, . 1943. An invitation to spanish. New York: Simon and Schuster.

Harvard

Madrigal M., Madrigal E., . (1943). An invitation to spanish. New York: Simon and Schuster.

MLA

Madrigal Margarita, Madrigal Ezequías, . An invitation to spanish. New York: Simon and Schuster. 1943.