Cita APA (7a ed.)

Written by Jill Eggleton. (2018). Big hippo and little hippo. 长江少年儿童出版社.

Cita Chicago Style (17a ed.)

Written by Jill Eggleton. Big Hippo and Little Hippo. 长江少年儿童出版社, 2018.

Cita MLA (8a ed.)

Written by Jill Eggleton. Big Hippo and Little Hippo. 长江少年儿童出版社, 2018.