APA aipamena

De Leon, S. Y. (1980). Guide to research and scientific reporting (Rev. and enlarged ed.). Merriam School and Office Supplies.

Chicago Style aipamena

De Leon, Sonia Y. Guide to Research and Scientific Reporting. Rev. and enlarged ed. Manila: Merriam School and Office Supplies, 1980.

MLA aipamena

De Leon, Sonia Y. Guide to Research and Scientific Reporting. Rev. and enlarged ed. Merriam School and Office Supplies, 1980.