American Cancer Society. (2015). Cancer. John Wiley & Sons.
Citação do estilo Chicago (17ª ed.)American Cancer Society. Cancer. Hoboken, NJ: John Wiley & Sons, 2015.
Citação MLA (8ª ed.)American Cancer Society. Cancer. John Wiley & Sons, 2015.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.