Waugh, L. R. (1991). Tense-aspect and hierarchy of meanings: Pragmatic, textual, modal, discourse, expressive, referential. New vistas in grammar, ed. by L.R. Waugh, Stephen Rudy, Amsterdam [etc.], 1991, P. 241-260 (Amsterdam studies in the theory and history of linguistic science), 241.
Chicago Style (17th ed.) CitationWaugh, Linda R. "Tense-aspect and Hierarchy of Meanings: Pragmatic, Textual, Modal, Discourse, Expressive, Referential." New Vistas in Grammar, Ed. by L.R. Waugh, Stephen Rudy, Amsterdam [etc.], 1991, P. 241-260 (Amsterdam Studies in the Theory and History of Linguistic Science) 1991: 241.
MLA (9th ed.) CitationWaugh, Linda R. "Tense-aspect and Hierarchy of Meanings: Pragmatic, Textual, Modal, Discourse, Expressive, Referential." New Vistas in Grammar, Ed. by L.R. Waugh, Stephen Rudy, Amsterdam [etc.], 1991, P. 241-260 (Amsterdam Studies in the Theory and History of Linguistic Science), 1991, p. 241.