Gaya APA
Akehurst, BC.. (1981).
Tobacco .
London:
Longman.
Gaya Chicago
Akehurst, BC..
Tobacco.
London:
Longman,
1981.
Tesis.
Gaya MLA
Akehurst, BC..
Tobacco.
London:
Longman,
1981.
Tesis.
Gaya Turabian
Akehurst, BC..
Tobacco.
London:
Longman,
1981.
Tesis.