George, H. (1967). 101 substitution tables for students of english: Teachers' and advanced students' guide. At the University Pr.
Chicago Style (17. basım) AtıfGeorge, H.V. 101 Substitution Tables for Students of English: Teachers' and Advanced Students' Guide. Cambridge: At the University Pr, 1967.
MLA (9th ed.) AtıfGeorge, H.V. 101 Substitution Tables for Students of English: Teachers' and Advanced Students' Guide. At the University Pr, 1967.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..