Gaya APA

Swanson, C, P., Merusi, D. (NULL). Software implementation techniques VMS,UNIX,OS/2,and MS-DOS . USA:: USA: Digital Press; 1992.

Gaya MLA

Swanson, Carl, P.., Merusi, Donald. "Software implementation techniques VMS,UNIX,OS/2,and MS-DOS". USA:: USA: Digital Press; 1992, NULL. Text.