Leon, A. . .. (2003). IBM mainframe: Handbook. Vikas Publishing House.
Chicago Edition CitationLeon, Alexis. IBM Mainframe: Handbook. New Delhi: Vikas Publishing House, 2003.
MLA Edition CitationLeon, Alexis. IBM Mainframe: Handbook. Vikas Publishing House, 2003.
Warning: These citations may not always be 100% accurate.