Ocampo, P. D. S. (1996). Catalog of institutions and agencies for children with special needs. s.n.
Citazione stile Chigago Style (17a edizione)Ocampo, Perla D. Santos-. Catalog of Institutions and Agencies for Children with Special Needs. Manila: s.n, 1996.
Citatione MLA (9a ed.)Ocampo, Perla D. Santos-. Catalog of Institutions and Agencies for Children with Special Needs. s.n, 1996.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.