APA (7. basım) Alıntı

Sommer, B., & Pötzsch, O. (2003). Population of Germany Today and Tomorrow. Metzler-Poeschel.

Chicago Style (17. basım) Atıf

Sommer, Bettina, ve Olga Pötzsch. Population of Germany Today and Tomorrow. Wiesbaden: Metzler-Poeschel, 2003.

MLA (8th ed.) Atıf

Sommer, Bettina, ve Olga Pötzsch. Population of Germany Today and Tomorrow. Metzler-Poeschel, 2003.