Gaya APA
Pegrum, Dudley F.. (1971).
Transportation economics and public policy (text).
America:
Richard D. Irwin, Inc.
Gaya Chicago
Pegrum, Dudley F..
Transportation economics and public policy.
text
America:
Richard D. Irwin, Inc,
1971.
Tesis.
Gaya MLA
Pegrum, Dudley F..
Transportation economics and public policy.
text
America:
Richard D. Irwin, Inc,
1971.
Tesis.
Gaya Turabian
Pegrum, Dudley F..
Transportation economics and public policy.
text
America:
Richard D. Irwin, Inc,
1971.
Tesis.