Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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