APA (7th ed.) Citation

Schacht P, Da̕z-Garca̕ L, Aguilar J, Ramr̕ez S, Přez-Romo P, Espinosa M, & Scientific Research Publishing. Upgrading of heavy crude oil with W-Zr catalyst.

Chicago Style (17th ed.) Citation

Schacht P, Da̕z-Garca̕ L, Aguilar J, Ramr̕ez S, Přez-Romo P, Espinosa M, and Scientific Research Publishing. Upgrading of Heavy Crude Oil with W-Zr Catalyst.

MLA (9th ed.) Citation

Schacht P, et al. Upgrading of Heavy Crude Oil with W-Zr Catalyst.

Warning: These citations may not always be 100% accurate.