Melville, A., & Johnson, C. (1988). Immunity plus: How to be healthy in the age of new infections / Arabella Melville and Colin Johnson. Penguin.
Lua i Stíl Chicago (17ú heag.)Melville, Arabella, agus Colin Johnson. Immunity Plus: How to Be Healthy in the Age of New Infections / Arabella Melville and Colin Johnson. London: Penguin, 1988.
Lua MLA (8ú heag.)Melville, Arabella, agus Colin Johnson. Immunity Plus: How to Be Healthy in the Age of New Infections / Arabella Melville and Colin Johnson. Penguin, 1988.
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