00000ctm a22000004a 4500 UP-99796217603648393 Buklod 20230503092542.0 m |o d | ta 080209s1971 xx a r |000 u|eng d (iLib)UPD-00000212604 eng DMLUC LG 994 1971 G65 Gonzales, Leticia Ritez 1934- Maintenance of cleanliness of the Rizal park Leticia Ritez Gonzales. [Quezon City s.n.] 1971. 142 leaves ill. Thesis (M. Ed.)--University of the Philippines. The healthful environment of Rizal Park which is in flagrant contrast to its surrounding aroused the writer's interest to find out the reasons behind the park's continued cleanliness. The normative survey which was supplemented by the bibliographical descriptive method of research was utilized in this investigation. Rizal Park. Thesis FI UP paper UPD DARCHIVES LG 994 1971 G65 UPD DEDUC LG 994 1971 G65 Thesis