CHROMOSOMAL VARIATION IN MAN 4TH EDITION
DIGAMBER S.BORGAOKAR2222 年出版965 页ISBN：0845102311
LANGUAGE VARIATION-EUROPEAN PERSPECTIVES III
FRANS GREGERSEN，JEFFREY K.PARROTT AND PIA QUIST2011 年出版260 页ISBN：9027234876
ENGLISH IN COMPUTER-MEDIATED COMMUNICATION VARIATION
REPRESENTATION2016 年出版380 页ISBN：
METAPHORS OF SADNESS:INTRACONCEPTUAL AND INTERCONCEPTUAL VARIATION
丁研著2016 年出版289 页ISBN：7512129221
Dialects of English: Studies in Grammatical Variation
Peter Trudgill2017 年出版306 页ISBN：1138417434
MINIMAL SURFACES AND FUNCTIONS OF BOUNDED VARIATION
ENRICO GIUSTI1984 年出版240 页ISBN：0817631534
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