APA Edition Citation

PSI Data Systems. (1985). Macro Reference Manual. PSI Data Systems PVT. LTD.

Chicago Edition Citation

PSI Data Systems. Macro Reference Manual. Bangalore: PSI Data Systems PVT. LTD, 1985.

MLA Edition Citation

PSI Data Systems. Macro Reference Manual. PSI Data Systems PVT. LTD, 1985.

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