Gaya APA

Polin, R, A., Yoder, M, C. (2007). Workbook in practical neonatology (4). : Elsever Saunders.

Gaya MLA

Polin, Richard, A.., Yoder, Mervin, C.. "Workbook in practical neonatology". 4 : Elsever Saunders, 2007. Text.