APA-Zitierstil (7. Ausg.)

Ravens, J. v., & Aggio, C. (2008). Expanding early childhood care and education: How much does it cost? Bernard van Leer Found.

Chicago-Zitierstil (17. Ausg.)

Ravens, Jan van, und Carlos Aggio. Expanding Early Childhood Care and Education: How Much Does It Cost? The Hague: Bernard van Leer Found, 2008.

MLA-Zitierstil (9. Ausg.)

Ravens, Jan van, und Carlos Aggio. Expanding Early Childhood Care and Education: How Much Does It Cost? Bernard van Leer Found, 2008.