Razik, Taher A. Systems approach to teacher training and curriculum development the case of developing countries [by] Taher A. Razik. - Paris Unesco: International Institute for Educational Planning 1972. - 157 p. illus. 24 cm. LCCN: 72169762 //r872 Nat. Bib. No.: F*** Subjects--Topical Terms: Education--Developing countries.Curriculum planningTeachers--Training of--Puerto Rico. LC Class. No.: LC2607 / .R39 Dewey Class. No.: 371.2/07/091724