Gaya APA
Littlechild, S. C.. (1979).
Elements of Telecommunications Economics .
New York:
Peter Peregrinus Ltd.
Gaya Chicago
Littlechild, S. C..
Elements of Telecommunications Economics.
New York:
Peter Peregrinus Ltd,
1979.
.
Gaya MLA
Littlechild, S. C..
Elements of Telecommunications Economics.
New York:
Peter Peregrinus Ltd,
1979.
.
Gaya Turabian
Littlechild, S. C..
Elements of Telecommunications Economics.
New York:
Peter Peregrinus Ltd,
1979.
.