Friendlaender, A. F. (1965). The interstate highway system; a study in public investment. North-Holland Pub.
Lua i Stíl Chicago (17ú heag.)Friendlaender, Ann Fetter. The Interstate Highway System; a Study in Public Investment. Amsterdam: North-Holland Pub, 1965.
Lua MLA (9ú heag.)Friendlaender, Ann Fetter. The Interstate Highway System; a Study in Public Investment. North-Holland Pub, 1965.
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