The transportation industries, 1889-1946; a study of output, employment, and productivity
| मुख्य लेखक: | |
|---|---|
| स्वरूप: | पुस्तक |
| भाषा: | English |
| प्रकाशित: |
New York
National Bureau of Economic Research
1951
|
| श्रृंखला: | Publications of the National Bureau of Economic Research, inc. no. 51
|
| विषय: |