Παραπομπή APA

(1997). Model specification for tunnelling. London : New York: T. Telford ; American Society of Civil Engineers, Publications Sales Dept. [distributor].

Παραπομπή Chicago Style

Model Specification for Tunnelling. London : New York: T. Telford ; American Society of Civil Engineers, Publications Sales Dept. [distributor], 1997.

Παραπομπή MLA

Model Specification for Tunnelling. London : New York: T. Telford ; American Society of Civil Engineers, Publications Sales Dept. [distributor], 1997.

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