Cita APA (7th ed.)

Stapleton, P. J., & Glover, M. A. (2001). Environmental management systems: An implementation guide for small and medium-sized organizations (2nd ed.). NSF International.

Cita Chicago (17th ed.)

Stapleton, Philip J., i Margaret A. Glover. Environmental Management Systems: An Implementation Guide for Small and Medium-sized Organizations. 2nd ed. Ann Arbor, MI: NSF International, 2001.

Cita MLA (9th ed.)

Stapleton, Philip J., i Margaret A. Glover. Environmental Management Systems: An Implementation Guide for Small and Medium-sized Organizations. 2nd ed. NSF International, 2001.