Παραπομπή APA

(1991). Public transit research: Rail, bus, and new technology, 1991. Washington, D.C: Transportation Research Board, National Research Council.

Παραπομπή Chicago Style

Public Transit Research: Rail, Bus, and New Technology, 1991. Washington, D.C: Transportation Research Board, National Research Council, 1991.

Παραπομπή MLA

Public Transit Research: Rail, Bus, and New Technology, 1991. Washington, D.C: Transportation Research Board, National Research Council, 1991.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.