APA (7e ed.) Bronvermelding

Berry, C. (2011). The sustainable procurement guide: Procuring sustainably using BS 8903. BSi.

Chicago (17e ed.) Bronvermelding

Berry, Cathy. The Sustainable Procurement Guide: Procuring Sustainably Using BS 8903. London: BSi, 2011.

MLA (8e ed.) Bronvermelding

Berry, Cathy. The Sustainable Procurement Guide: Procuring Sustainably Using BS 8903. BSi, 2011.

Let op: Deze citaties zijn niet altijd 100% accuraat.