George, H. (1967). 101 substitution tables for students of english: Teachers' and advanced students' guide. At the University Pr.
Citace podle Chicago (17th ed.)George, H.V. 101 Substitution Tables for Students of English: Teachers' and Advanced Students' Guide. Cambridge: At the University Pr, 1967.
Citace podle MLA (9th ed.)George, H.V. 101 Substitution Tables for Students of English: Teachers' and Advanced Students' Guide. At the University Pr, 1967.
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