Παραπομπή APA

Havers, H. C. P. (1966). Underground railways of the world: Their history and development. London: Temple Press Books.

Παραπομπή Chicago Style

Havers, H. C. P. Underground Railways of the World: Their History and Development. London: Temple Press Books, 1966.

Παραπομπή MLA

Havers, H. C. P. Underground Railways of the World: Their History and Development. London: Temple Press Books, 1966.

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