LADYBIRD BOOKS. (2020). PEPPA PIG: PEPPA'S COUNTDOWN TO BEDTIME. LADYBIRD BOOKS.
Chicago-čujuhus (17. p.)LADYBIRD BOOKS. PEPPA PIG: PEPPA'S COUNTDOWN TO BEDTIME. UK: LADYBIRD BOOKS, 2020.
MLA-čujuhus (9. p.)LADYBIRD BOOKS. PEPPA PIG: PEPPA'S COUNTDOWN TO BEDTIME. LADYBIRD BOOKS, 2020.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.