Fernández Aguilar, M., Valverde Serrano, L., Jiménez Ulloa, M. E., Sánchez Alvarado, M. C., & Sequeira Ortiz, N. (1981). Existing at the Center for Documentation Unit of the National University Library Documents.

Fernández Aguilar, Mayra, Lady Valverde Serrano, María Ester Jiménez Ulloa, María Cecilia Sánchez Alvarado, and Nidia Sequeira Ortiz. Existing At the Center for Documentation Unit of the National University Library Documents. 1981.

Fernández Aguilar, Mayra, et al. Existing At the Center for Documentation Unit of the National University Library Documents. 1981.