APA Style
Ubongo, . (2017).
Banana Thief: adding and subtracting negative numbers .
Dar es Salaam, Tanzania.:
Mkuki na Nyota.
MLA Style
Ubongo, .
"Banana Thief: adding and subtracting negative numbers".
Dar es Salaam, Tanzania.:
Mkuki na Nyota,
2017.
Book.