Gaya APA

857. (). : Ladybird Book.

Gaya Chicago

857. ABC. : Ladybird Book, . 08/C/ING/014.

Gaya MLA

857. ABC. : Ladybird Book, . 08/C/ING/014.

Gaya Turabian

857. : Ladybird Book, . 08/C/ING/014.