(1975). The National Library of Medicine Programs and Services, Fiscal Year 1974.
Citazione stile Chigago Style (17a edizione)The National Library of Medicine Programs and Services, Fiscal Year 1974. 1975.
Citatione MLA (9a ed.)The National Library of Medicine Programs and Services, Fiscal Year 1974. 1975.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.