Whitelaw, K. (1997). ISO 14001 environmental systems handbook. Butterworth Heinemann.
Cita Chicago (17th ed.)Whitelaw, Ken. ISO 14001 Environmental Systems Handbook. Oxford; Boston: Butterworth Heinemann, 1997.
Cita MLA (9th ed.)Whitelaw, Ken. ISO 14001 Environmental Systems Handbook. Butterworth Heinemann, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.