APA

Terrell H., . (2012). Valves get tougher for increasing depths, longer reach, higher pressures and temperature extremes. : .

Chicago

Terrell Henry, . 2012. Valves get tougher for increasing depths, longer reach, higher pressures and temperature extremes. : .

Harvard

Terrell H., . (2012). Valves get tougher for increasing depths, longer reach, higher pressures and temperature extremes. : .

MLA

Terrell Henry, . Valves get tougher for increasing depths, longer reach, higher pressures and temperature extremes. : . 2012.