Philippines Dept. of Public Works, Transportation and Communications. (1977). Analysis of typology dynamics: National level. DPWTC.
Chicago-Zitierstil (17. Ausg.)Philippines Dept. of Public Works, Transportation and Communications. Analysis of Typology Dynamics: National Level. Quezon City: DPWTC, 1977.
MLA-Zitierstil (9. Ausg.)Philippines Dept. of Public Works, Transportation and Communications. Analysis of Typology Dynamics: National Level. DPWTC, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.