Internet in 20 stappen : Netscape Communicator 4.

MLA

Arts, Stefan. Internet In 20 Stappen : Netscape Communicator 4. Soest: Sybex, 1997.

APA

Arts, S. (1997). Internet in 20 stappen : Netscape Communicator 4. Soest: Sybex.

Chicago

Arts, Stefan, Internet In 20 Stappen: Netscape Communicator 4. Soest: Sybex, 1997.