Gaya APA
SPROULE,Anna. (1987).
Food for the world .
New York:
United States of Amerika.
Gaya Chicago
SPROULE,Anna.
Food for the world.
New York:
United States of Amerika,
1987.
Text.
Gaya MLA
SPROULE,Anna.
Food for the world.
New York:
United States of Amerika,
1987.
Text.
Gaya Turabian
SPROULE,Anna.
Food for the world.
New York:
United States of Amerika,
1987.
Print.