APA Style
KREYENFELD, M., KONIETZKA, D. (2017).
Childlessness in Europe: Contexts, Causes, and Consequences .
Heidelberg, Jerman:
Springer International Publishing.
MLA Style
KREYENFELD, Michaela., KONIETZKA, Dirk.
"Childlessness in Europe: Contexts, Causes, and Consequences".
Heidelberg, Jerman:
Springer International Publishing,
2017.
Text.