APA引文

LADYBIRD BOOKS LTD. THE THREE BILLY GOATS GRUFF.

芝加哥风格引文

LADYBIRD BOOKS LTD. THE THREE BILLY GOATS GRUFF.

MLA引文

LADYBIRD BOOKS LTD. THE THREE BILLY GOATS GRUFF.

警告：这些引文格式不一定是100％准确.