TY  - BOOK
ED  - Department of Public Works
TI  - Manual of traffic signs (revised)
U1  - 343.094 
PY  - 1957///
CY  - Puerto Rico
PB  - bureau of traffic traffic engineering division
KW  - Señales de trafico
KW  - Manual
KW  - Señales de carretea
KW  - Puerto Rico
N1  - Manual de señales de tráfico
N2  - Alphaset series shown for each mesage refer to those in the standard alphabet for highway signs designed by the bureau of public roads of the U.S. departament of conmerce and approved by the american association of state highway officials
ER  -