Watanabe, H. (1977). Human activity system: Its spatiotemporal structure. University of Tokyo Press.
Chicagoスタイル(17版)引用形式Watanabe, Hitoshi. Human Activity System: Its Spatiotemporal Structure. [Tokyo ]: University of Tokyo Press, 1977.
MLA(9版)引用形式Watanabe, Hitoshi. Human Activity System: Its Spatiotemporal Structure. University of Tokyo Press, 1977.
警告: この引用は必ずしも正確ではありません.