APA

Guo R., Mannhardt K. & Kantzas A. (2008). Laboratory investigation on the permeability of coal during primary and enhanced coalbed methane production. : .

Chicago

Guo R, Mannhardt K and Kantzas A. 2008. Laboratory investigation on the permeability of coal during primary and enhanced coalbed methane production. : .

Harvard

Guo R., Mannhardt K. and Kantzas A. (2008). Laboratory investigation on the permeability of coal during primary and enhanced coalbed methane production. : .

MLA

Guo R, Mannhardt K and Kantzas A. Laboratory investigation on the permeability of coal during primary and enhanced coalbed methane production. : . 2008.