(2003). Strip pit management and neutralization: Landowner management guide / Missouri Department of Natural Resources.
Cita Chicago (17th ed.)Strip Pit Management and Neutralization: Landowner Management Guide / Missouri Department of Natural Resources. 2003.
Cita MLA (9th ed.)Strip Pit Management and Neutralization: Landowner Management Guide / Missouri Department of Natural Resources. 2003.
Atenció: Aquestes cites poden no estar 100% correctes.