Não informado. (1959). National Cancer Institute Monograph. U.S. Department of Health and Human Services, Public Health Service.
Citação do estilo Chicago (17ª ed.)Não informado. National Cancer Institute Monograph. Bethesda, Md: U.S. Department of Health and Human Services, Public Health Service, 1959.
Citação MLA (8ª ed.)Não informado. National Cancer Institute Monograph. U.S. Department of Health and Human Services, Public Health Service, 1959.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.