APA Style
WALKER, John. (1990).
Mobile Information Systems .
:
Artech House.
Chicago Style
WALKER, John.
Mobile Information Systems.
:
Artech House,
1990.
.
MLA Style
WALKER, John.
Mobile Information Systems.
:
Artech House,
1990.
.
Turabian Style
WALKER, John.
Mobile Information Systems.
:
Artech House,
1990.
.