Cita APA (7a ed.)

(英)开尔文·霍利著绘. (2016). I can help. 长江少年儿童出版社.

Cita Chicago Style (17a ed.)

(英)开尔文·霍利著绘. I Can Help. 长江少年儿童出版社, 2016.

Cita MLA (8a ed.)

(英)开尔文·霍利著绘. I Can Help. 长江少年儿童出版社, 2016.