PSI Data Systems. (1985). Macro Reference Manual. PSI Data Systems PVT. LTD.
Chicago Edition CitationPSI Data Systems. Macro Reference Manual. Bangalore: PSI Data Systems PVT. LTD, 1985.
MLA Edition CitationPSI Data Systems. Macro Reference Manual. PSI Data Systems PVT. LTD, 1985.
Warning: These citations may not always be 100% accurate.