APA

Gunardson H. H., Abrardo J. M., Air Products and Chemicals, Abrardo J. M. & Air Products and Chemicals.Produce CO-rich synthesis gas. : .

Chicago

Gunardson Harold H, Abrardo Joseph M, Air Products and Chemicals, Abrardo Joseph M and Air Products and Chemicals.Produce CO-rich synthesis gas. : .

Harvard

Gunardson H. H., Abrardo J. M., Air Products and Chemicals, Abrardo J. M. and Air Products and Chemicals.Produce CO-rich synthesis gas. : .

MLA

Gunardson Harold H, Abrardo Joseph M, Air Products and Chemicals, Abrardo Joseph M and Air Products and Chemicals.: . .