St. Mary's College, Tagum, Davao del Norte, & Silfverberg, R. R. (1992). Business directory: Davao province 1992. Business Resource Center, St. Mary's College.
Citação do estilo Chicago (17ª ed.)St. Mary's College, Tagum, Davao del Norte, e Raymunda Rimando Silfverberg. Business Directory: Davao Province 1992. Tagum, Davao: Business Resource Center, St. Mary's College, 1992.
Citação MLA (9ª ed.)St. Mary's College, Tagum, Davao del Norte, e Raymunda Rimando Silfverberg. Business Directory: Davao Province 1992. Business Resource Center, St. Mary's College, 1992.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.