Gaya APA

ORFALI, R, &, D, H. (1993). Client/server programming with OS/2 2.1 . : New York : Van Nostrand Reinhold.

Gaya MLA

ORFALI, Robert, &, Dan, Harkey. "Client/server programming with OS/2 2.1". : New York : Van Nostrand Reinhold, 1993. Book.