Kleef, M. v. (1988). The biosynthesis of the cofactor pyrroloquinoline quinone. [Drucker:] Krips Repro.
Čikaški stil citiranja (17. izdanje)Kleef, Mario van. The Biosynthesis of the Cofactor Pyrroloquinoline Quinone. Meppel: [Drucker:] Krips Repro, 1988.
MLA način citiranja (8. izdanje)Kleef, Mario van. The Biosynthesis of the Cofactor Pyrroloquinoline Quinone. [Drucker:] Krips Repro, 1988.
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