Harris, D. P. (1966). Reading improvement exercises for students of English as a second language. Englewood Cliffs, New Jersey: Prentice-Hall.
Παραπομπή Chicago StyleHarris, David P. Reading Improvement Exercises for Students of English As a Second Language. Englewood Cliffs, New Jersey: Prentice-Hall, 1966.
Παραπομπή MLAHarris, David P. Reading Improvement Exercises for Students of English As a Second Language. Englewood Cliffs, New Jersey: Prentice-Hall, 1966.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.