World Health Organization & World Health Organization. Aged Population, principles for evaluating the effects of chemicals.
Citazione stile Chigago Style (17a edizione)World Health Organization e World Health Organization. Aged Population, Principles for Evaluating the Effects of Chemicals.
Citatione MLA (8a ed.)World Health Organization e World Health Organization. Aged Population, Principles for Evaluating the Effects of Chemicals.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.