APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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