.Warren, R. H. (1989). Motivation and productivity in the construction industry. Van Nostrand Reinhold.
Chicagoスタイル(17版)引用形式.Warren, Robert H. Motivation and Productivity in the Construction Industry. New York: Van Nostrand Reinhold, 1989.
MLA(9版)引用形式.Warren, Robert H. Motivation and Productivity in the Construction Industry. Van Nostrand Reinhold, 1989.
警告: この引用は必ずしも正確ではありません.