Dyfyniad APA

Johns, R. (2004). Turfgrass installation: Management and maintenance. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Johns, Rodney. Turfgrass Installation: Management and Maintenance. New York: McGraw-Hill, 2004.

Dyfyniad MLA

Johns, Rodney. Turfgrass Installation: Management and Maintenance. New York: McGraw-Hill, 2004.

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