TY  - BOOK
AU  - Byrd,Hazel Patricia
TI  - Modals in present-day American English: theories, applications and resource materials for the teaching of English as a second language 
PY  - 1974///
CY  - Florida
PB  - University of Florida
KW  - Languages, Modern
KW  - Study and teaching
N1  - Thesis (Ph.D.) - University of Florida, 1974; Bibliography : p. 216-219
ER  -