APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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