APA (7e ed.) Bronvermelding

(1993). Kerr's cost data for landscape construction: Unit prices for site development (13th ed.). Van Nostrand Reinhold.

Chicago (17e ed.) Bronvermelding

Kerr's Cost Data for Landscape Construction: Unit Prices for Site Development. 13th ed. New York: Van Nostrand Reinhold, 1993.

MLA (9e ed.) Bronvermelding

Kerr's Cost Data for Landscape Construction: Unit Prices for Site Development. 13th ed. Van Nostrand Reinhold, 1993.