APA Style
Kessler, Gary C.. (1993).
ISDN (2nd ed.).
Singapore:
MC GRAW-HILL.
Chicago Style
Kessler, Gary C..
ISDN.
2nd ed.
Singapore:
MC GRAW-HILL,
1993.
.
MLA Style
Kessler, Gary C..
ISDN.
2nd ed.
Singapore:
MC GRAW-HILL,
1993.
.
Turabian Style
Kessler, Gary C..
ISDN.
2nd ed.
Singapore:
MC GRAW-HILL,
1993.
.