Παραπομπή σε μορφή APA (7η εκδ.)

Duchén, K. (1999). Human milk factors and atopy in early childhood. Faculty of Health Sciences, Linköping University.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Duchén, Karel. Human Milk Factors and Atopy in Early Childhood. Linköping: Faculty of Health Sciences, Linköping University, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Duchén, Karel. Human Milk Factors and Atopy in Early Childhood. Faculty of Health Sciences, Linköping University, 1999.