Παραπομπή APA

(1977). A techno-economic feasibility study for standard gauge: Final report. [s.l.]: Rail India Technical and Economic Services.

Παραπομπή Chicago Style

A Techno-economic Feasibility Study for Standard Gauge: Final Report. [s.l.]: Rail India Technical and Economic Services, 1977.

Παραπομπή MLA

A Techno-economic Feasibility Study for Standard Gauge: Final Report. [s.l.]: Rail India Technical and Economic Services, 1977.

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