Estrada, S. (1998). Cystatin A, a mammalian cysteine proteinase inhibitor: Mechanism of inhibition of target proteinases by recombinant cystatin A variants. Swedish University of Agricultural Sciences.
Čikaški stil citiranja (17. izdanje)Estrada, Sergio. Cystatin A, a Mammalian Cysteine Proteinase Inhibitor: Mechanism of Inhibition of Target Proteinases by Recombinant Cystatin A Variants. Uppsala: Swedish University of Agricultural Sciences, 1998.
MLA način citiranja (8. izdanje)Estrada, Sergio. Cystatin A, a Mammalian Cysteine Proteinase Inhibitor: Mechanism of Inhibition of Target Proteinases by Recombinant Cystatin A Variants. Swedish University of Agricultural Sciences, 1998.
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