Porter, T. M. Reforming vision: The engineer Le Play learns to observe society sagely / Theodor M. Porter. Histories of scientific observation.(2011).
Chicago-Zitierstil (17. Ausg.)Porter, Theodor M. "Reforming Vision: The Engineer Le Play Learns to Observe Society Sagely / Theodor M. Porter." Histories of Scientific Observation.(2011) .
MLA-Zitierstil (8. Ausg.)Porter, Theodor M. "Reforming Vision: The Engineer Le Play Learns to Observe Society Sagely / Theodor M. Porter." Histories of Scientific Observation.(2011), .
警告：這些引文格式不一定是100％准確.