Gaya APA
Widmark,Martin, Willis,Helena. (2002).
Billy and Maya's detective agency (the diamond mystery) .
Jakarta:
Erlangga for kids.
Gaya Chicago
Widmark,Martin, Willis,Helena.
Billy and Maya's detective agency (the diamond mystery).
Jakarta:
Erlangga for kids,
2002.
Text.
Gaya MLA
Widmark,Martin, Willis,Helena.
Billy and Maya's detective agency (the diamond mystery).
Jakarta:
Erlangga for kids,
2002.
Text.
Gaya Turabian
Widmark,Martin, Willis,Helena.
Billy and Maya's detective agency (the diamond mystery).
Jakarta:
Erlangga for kids,
2002.
Print.