APA-viite (7. p.)

North Klaus. (1997). Environmental business management: An Introduction (2nd (revised).). International Labour Office.

Chicago-viite (17. p.)

North Klaus. Environmental Business Management: An Introduction. 2nd (revised). Geneva: International Labour Office, 1997.

MLA-viite (9. p.)

North Klaus. Environmental Business Management: An Introduction. 2nd (revised). International Labour Office, 1997.