Citação norma APA

Phan Xuân Sơn. (2000). An investigation into in, at, on and to and how they are used by Vietnamese high school learners.

Citação norma Chicago

Phan Xuân Sơn. An Investigation Into In, At, On and to and How They Are Used By Vietnamese High School Learners. 2000.

Citação norma MLA

Phan Xuân Sơn. An Investigation Into In, At, On and to and How They Are Used By Vietnamese High School Learners. 2000.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.