APA Style

Patrick A. Baeuerle,PH.D dan Norbert Landa. (2015). Where Is the Great Wall? [ kelas 4-5-6 ] . USA: Penguin Books.

Chicago Style

Patrick A. Baeuerle,PH.D dan Norbert Landa. Where Is the Great Wall? [ kelas 4-5-6 ]. USA: Penguin Books, 2015. Text.

MLA Style

Patrick A. Baeuerle,PH.D dan Norbert Landa. Where Is the Great Wall? [ kelas 4-5-6 ]. USA: Penguin Books, 2015. Text.

Turabian Style

Patrick A. Baeuerle,PH.D dan Norbert Landa. Where Is the Great Wall? [ kelas 4-5-6 ]. USA: Penguin Books, 2015. Print.