Curriculum Development Center for Science and Mathematics, S. E. C. (1977). Elementary school science 2: Things change. Teacher's manual. Department of Education and Cutlture,Republic of the Philippines.
Citação do estilo Chicago (17ª ed.)Curriculum Development Center for Science and Mathematics, Science Education Center. Elementary School Science 2: Things Change. Teacher's Manual. Manila: Department of Education and Cutlture,Republic of the Philippines, 1977.
Citação MLA (9ª ed.)Curriculum Development Center for Science and Mathematics, Science Education Center. Elementary School Science 2: Things Change. Teacher's Manual. Department of Education and Cutlture,Republic of the Philippines, 1977.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.