Gaya APA
Kreyenfeld, M., Konietzka, D. (2017).
Childlessness in Europe :contexts, causes, and consequences .
Cham, Switzerland:
Springer Open.
Gaya MLA
Kreyenfeld, Michaela., Konietzka, Dirk.
"Childlessness in Europe :contexts, causes, and consequences".
Cham, Switzerland:
Springer Open,
2017.
Electronic Resource.