APA (7th ed.) Citation

Ashley, R., Zomer Rezler, C., & Corona Rodríguez, H. (1977). Cobol ans. Limusa.

Chicago Style (17th ed.) Citation

Ashley, Ruth, Clara Zomer Rezler, and Hortensia Corona Rodríguez. Cobol Ans. México: Limusa, 1977.

MLA (9th ed.) Citation

Ashley, Ruth, et al. Cobol Ans. Limusa, 1977.