Παραπομπή APA

(1977). A guide to the structural design of bitumen-surfaced roads in tropical and sub-tropical countries. London: Her Majesty's Stationery Office.

Παραπομπή Chicago Style

A Guide to the Structural Design of Bitumen-surfaced Roads in Tropical and Sub-tropical Countries. London: Her Majesty's Stationery Office, 1977.

Παραπομπή MLA

A Guide to the Structural Design of Bitumen-surfaced Roads in Tropical and Sub-tropical Countries. London: Her Majesty's Stationery Office, 1977.

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