APA (7. basım) Alıntı

Amy Shields. (2011). National Geographic Readers: Trains. National Geographic Children's Books.

Chicago Style (17. basım) Atıf

Amy Shields. National Geographic Readers: Trains. National Geographic Children's Books, 2011.

MLA (9th ed.) Atıf

Amy Shields. National Geographic Readers: Trains. National Geographic Children's Books, 2011.