APA (7th ed.) Citation

ebrary, Inc, & Walker, J. A. (2010). Aspect in grammatical variation. John Benjamins Pub. Company.

Chicago Style (17th ed.) Citation

ebrary, Inc, and James A. Walker. Aspect in Grammatical Variation. Amsterdam ; Philadelphia: John Benjamins Pub. Company, 2010.

MLA (9th ed.) Citation

ebrary, Inc, and James A. Walker. Aspect in Grammatical Variation. John Benjamins Pub. Company, 2010.