Não informado. Philippine Abstracts. National Institute of Science and Technology, Division of Documentation.
Citação do estilo Chicago (17ª ed.)Não informado. Philippine Abstracts. Manila: National Institute of Science and Technology, Division of Documentation.
Citação MLA (8ª ed.)Não informado. Philippine Abstracts. National Institute of Science and Technology, Division of Documentation.
警告：这些引文格式不一定是100％准确.