APA

Dittrich M., Bonasewicz S., Buschenhagen J. & Loos W. (2006). Bibi Blocksberg. : .

Chicago

Dittrich Markus, Bonasewicz Susanna, Buschenhagen Jutta and Loos Wolfgang. 2006. Bibi Blocksberg. : .

Harvard

Dittrich M., Bonasewicz S., Buschenhagen J. and Loos W. (2006). Bibi Blocksberg. : .

MLA

Dittrich Markus, Bonasewicz Susanna, Buschenhagen Jutta and Loos Wolfgang. Bibi Blocksberg. : . 2006.