Ziff-Davis Press. (1995). Smart travel: Total planning on your computer. Ziff-Davis Press.
Citazione stile Chigago Style (17a edizione)Ziff-Davis Press. Smart Travel: Total Planning on Your Computer. Emeryville, Calif: Ziff-Davis Press, 1995.
Citatione MLA (9a ed.)Ziff-Davis Press. Smart Travel: Total Planning on Your Computer. Ziff-Davis Press, 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.