APA-ийн эшлэл(7 дахь хэвлэлт)

BIRD, P. (2021). THE NAUGHTIEST UNICORN AT SPORTS DAY. DEAN.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

BIRD, PIP. THE NAUGHTIEST UNICORN AT SPORTS DAY. GREAT BRITAIN: DEAN, 2021.

MLA -ийн эшлэл (9 дэх хэвлэлт)

BIRD, PIP. THE NAUGHTIEST UNICORN AT SPORTS DAY. DEAN, 2021.