APA (7th ed.) Citation

Puerto, O. R., & Castro, M. C. S. A. (2005). The Extent of first language interference in the use of English prepositions as reflected in selected English 1 compositions. College of Arts and Letters, University of the Philippines Diliman.

Chicago Style (17th ed.) Citation

Puerto, Ofelia R., and Maria Corazon Saturnina A. Castro. The Extent of First Language Interference in the Use of English Prepositions as Reflected in Selected English 1 Compositions. Quezon City: College of Arts and Letters, University of the Philippines Diliman, 2005.

MLA (9th ed.) Citation

Puerto, Ofelia R., and Maria Corazon Saturnina A. Castro. The Extent of First Language Interference in the Use of English Prepositions as Reflected in Selected English 1 Compositions. College of Arts and Letters, University of the Philippines Diliman, 2005.