APA način citiranja (7. izdanje)

Shahaby Ahmad F., El-din Khaled M. Essam, & Excellent Publishers. Desulfurization of Crude Oil and Oil Products by Local Isolated Bacterial Strains.

Čikaški stil citiranja (17. izdanje)

Shahaby Ahmad F., El-din Khaled M. Essam, i Excellent Publishers. Desulfurization of Crude Oil and Oil Products by Local Isolated Bacterial Strains.

MLA način citiranja (9. izdanje)

Shahaby Ahmad F., et al. Desulfurization of Crude Oil and Oil Products by Local Isolated Bacterial Strains.

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