Spencer, D. (1963). English for proficiency. Oxford University Pr.
Tohutoru Kātū Chicago (17th ed.)Spencer, D.H. English for Proficiency. London: Oxford University Pr, 1963.
Tohutoro MLA (9th ed.)Spencer, D.H. English for Proficiency. Oxford University Pr, 1963.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.