Citazione APA

Maurer, J., Jay, M., Lê Huy Lâm, & Phạm Tấn Quyền. (1997). Focus on grammar: An advanced course for reference and practice. Tp.HCM: Nxb. Tp.HCM.

Stile di citazione Chicago

Maurer, Jay, Maurer Jay, Lê Huy Lâm, e Phạm Tấn Quyền. Focus On Grammar: An Advanced Course for Reference and Practice. Tp.HCM: Nxb. Tp.HCM, 1997.

Citazione MLA

Maurer, Jay, Maurer Jay, Lê Huy Lâm, e Phạm Tấn Quyền. Focus On Grammar: An Advanced Course for Reference and Practice. Tp.HCM: Nxb. Tp.HCM, 1997.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.