Gaya APA

Lewine,Donald, . (1991). POSIX Programmer's Guide Writing Portable UNIX Programs with the POSIX.1 Standard . New York: OReilly & Associates.

Gaya MLA

Lewine,Donald, . "POSIX Programmer's Guide Writing Portable UNIX Programs with the POSIX.1 Standard". New York: OReilly & Associates, 1991. Electronic Resource.