Ziegler, E. E. (1998). Nutrition of the very low birthweight infant. Nestle Nutrition Services.
Citazione stile Chigago Style (17a edizione)Ziegler, Ekhard E. Nutrition of the Very Low Birthweight Infant. Switzerland: Nestle Nutrition Services, 1998.
Citatione MLA (9a ed.)Ziegler, Ekhard E. Nutrition of the Very Low Birthweight Infant. Nestle Nutrition Services, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.