APA

Purutyan H., Troxel T. G., Cabrejos F., Troxel T. G. & Cabrejos F.Your pneumatic conveying system to higher efficiency. : .

Chicago

Purutyan Herman, Troxel Thomas G, Cabrejos Francisco, Troxel Thomas G and Cabrejos Francisco.Your pneumatic conveying system to higher efficiency. : .

Harvard

Purutyan H., Troxel T. G., Cabrejos F., Troxel T. G. and Cabrejos F.Your pneumatic conveying system to higher efficiency. : .

MLA

Purutyan Herman, Troxel Thomas G, Cabrejos Francisco, Troxel Thomas G and Cabrejos Francisco.: . .