(1988). Public-domain software and shareware: Untapped resources for the PC user / Rusel DeMaria and George R. Fontaine.
Cita Chicago (17th ed.)Public-domain Software and Shareware: Untapped Resources for the PC User / Rusel DeMaria and George R. Fontaine. 1988.
Cita MLA (9th ed.)Public-domain Software and Shareware: Untapped Resources for the PC User / Rusel DeMaria and George R. Fontaine. 1988.
Atenció: Aquestes cites poden no estar 100% correctes.