Marks, R. (1981). Psoriasis: A guide to one of the commonest skin diseases. Arco.
Chicago-čujuhus (17. p.)Marks, Ronald. Psoriasis: A Guide to One of the Commonest Skin Diseases. Arco, 1981.
MLA-čujuhus (9. p.)Marks, Ronald. Psoriasis: A Guide to One of the Commonest Skin Diseases. Arco, 1981.
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