00544nam a2200205 a 4500 20210219153119.0 991125n 000 0 eng u UPN01000078893 Gandara, Patricia URBAN EDUCATION Extended year, extended contracts : increasing teacher salary options 229-247 1992 Vol. 27, no. 3 AÑO ESCOLAR MAESTROS EDUCACION BASICA SALARIOS AC 016704 Articulo 68813 68813