Gaya APA
Maharani, I., Sunardi, . (2007).
Let's Study Prepositions: Mari Belajar Preposisi (Cet. 1).
Yogyakarta:
Citra Aji Parama.
Gaya MLA
Maharani, Ida., Sunardi, .
"Let's Study Prepositions: Mari Belajar Preposisi".
Cet. 1
Yogyakarta:
Citra Aji Parama,
2007.
Text.