Philippines Department of Tourism.National Capital Region. (1991). 1991 tourism situation report: NCR. Department of Tourism.
Citação do estilo Chicago (17ª ed.)Philippines Department of Tourism.National Capital Region. 1991 Tourism Situation Report: NCR. Manila: Department of Tourism, 1991.
Citação MLA (9ª ed.)Philippines Department of Tourism.National Capital Region. 1991 Tourism Situation Report: NCR. Department of Tourism, 1991.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.