Παραπομπή APA

(1948). Standard specifications for construction of airports: Office of airports, Washington, D.C. Washington, D.C: U.S. Government Printing Office.

Παραπομπή Chicago Style

Standard Specifications for Construction of Airports: Office of Airports, Washington, D.C. Washington, D.C: U.S. Government Printing Office, 1948.

Παραπομπή MLA

Standard Specifications for Construction of Airports: Office of Airports, Washington, D.C. Washington, D.C: U.S. Government Printing Office, 1948.

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