Παραπομπή APA

Leon, A., & Leon, M. (1999). Database management systems. Leon Vikas.

Παραπομπή Chicago Style

Leon, Alexis, και Mathews Leon. Database Management Systems. Chennai: Leon Vikas, 1999.

Παραπομπή MLA

Leon, Alexis, και Mathews Leon. Database Management Systems. Leon Vikas, 1999.