Gibson, P., & Jewell, D. (1985). Sulphasalazine and derivatives, natural killer activity and ulcerative colitis.
Čikaški stil citiranja (17. izdanje)Gibson, P., i D. Jewell. Sulphasalazine and Derivatives, Natural Killer Activity and Ulcerative Colitis. 1985.
MLA način citiranja (9. izdanje)Gibson, P., i D. Jewell. Sulphasalazine and Derivatives, Natural Killer Activity and Ulcerative Colitis. 1985.
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