Παραπομπή σε μορφή APA (7η εκδ.)

Khorfan S, Wahoud A, Reda Y, & Periodica Polytechnica. Recovery of vanadium pentoxide from spent catalysis used in the manufacture of sulphuric acid.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Khorfan S, Wahoud A, Reda Y, και Periodica Polytechnica. Recovery of Vanadium Pentoxide from Spent Catalysis Used in the Manufacture of Sulphuric Acid.

Παραπομπή σε μορφή MLA (9th εκδ.)

Khorfan S, et al. Recovery of Vanadium Pentoxide from Spent Catalysis Used in the Manufacture of Sulphuric Acid.