Dyfyniad APA

Arnold, H. F. (1980). Trees in urban design. Van Nostrand Reinhold Company.

Dyfyniad Arddull Chicago

Arnold, Henry F. Trees in Urban Design. New York: Van Nostrand Reinhold Company, 1980.

Dyfyniad MLA

Arnold, Henry F. Trees in Urban Design. Van Nostrand Reinhold Company, 1980.

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