Παραπομπή APA

Leon, A., & Leon, M. (2006). Essentials of database management systems. Vijay Nicole Imprints.

Παραπομπή Chicago Style

Leon, Alexis, και Mathews Leon. Essentials of Database Management Systems. Chennai: Vijay Nicole Imprints, 2006.

Παραπομπή MLA

Leon, Alexis, και Mathews Leon. Essentials of Database Management Systems. Vijay Nicole Imprints, 2006.