CALLEN, J. P. 1995. Dermatological signs of internal disease. 2nd ed. Philadelphia: Saunders.
Citace podle APA (7th ed.)Callen, J. P. (1995). Dermatological signs of internal disease (2nd ed.). Saunders.
Citace podle Chicago (17th ed.)Callen, Jeffrey P. Dermatological Signs of Internal Disease. 2nd ed. Philadelphia: Saunders, 1995.
Citace podle MLA (9th ed.)Callen, Jeffrey P. Dermatological Signs of Internal Disease. 2nd ed. Saunders, 1995.
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