TY  - BOOK
AU  - Lightfoot,David
TI  - Principles of diachronic syntax
SN  - 0521293502
PY  - 1979///
CY  - Cambridge, New York, N.Y.
PB  - Cambridge University Press
KW  - Grammar, Comparative and general
KW  - Syntax
KW  - Historical linguistics
N1  - Includes bibliographical references : (p. [409]-427) and index; Preliminaries--A paradigm case : the English modals--A theory of change--More category changes--Changes in the lexicon
ER  -