Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.