Gaya APA
Watkins,Leslie. (1979).
Alternative 3 .
London:
Sphere Books Limited.
Gaya Chicago
Watkins,Leslie.
Alternative 3.
London:
Sphere Books Limited,
1979.
Text.
Gaya MLA
Watkins,Leslie.
Alternative 3.
London:
Sphere Books Limited,
1979.
Text.
Gaya Turabian
Watkins,Leslie.
Alternative 3.
London:
Sphere Books Limited,
1979.
Print.