Kinhill Pty. Ltd & Ulan Coal Mines. (1981). Ulan to Gulgong railway line extension: Environmental impact statement October 1981. Ulan Coal Mines.
Cita Chicago (17th ed.)Kinhill Pty. Ltd i Ulan Coal Mines. Ulan to Gulgong Railway Line Extension: Environmental Impact Statement October 1981. [North Sydney]: Ulan Coal Mines, 1981.
Cita MLA (8th ed.)Kinhill Pty. Ltd i Ulan Coal Mines. Ulan to Gulgong Railway Line Extension: Environmental Impact Statement October 1981. Ulan Coal Mines, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.