APA Style
Petrokis, Lee. (2013).
(Big Book) National Geographic Our World : The Three Pigs (A Fairy Tale) .
Usa:
National Geographic Learning.
Chicago Style
Petrokis, Lee.
(Big Book) National Geographic Our World : The Three Pigs (A Fairy Tale).
Usa:
National Geographic Learning,
2013.
Printed Book.
MLA Style
Petrokis, Lee.
(Big Book) National Geographic Our World : The Three Pigs (A Fairy Tale).
Usa:
National Geographic Learning,
2013.
Printed Book.
Turabian Style
Petrokis, Lee.
(Big Book) National Geographic Our World : The Three Pigs (A Fairy Tale).
Usa:
National Geographic Learning,
2013.
Printed Book.