Hasan, R., Matthiessen, C., & Webster, J. (2005). Continuing discourse on language: A functional perspective. Equinox.

Hasan, Ruqaiya, Christian Matthiessen, and Jonathan Webster. Continuing Discourse on Language: A Functional Perspective. London ; Oakville, Connecticut: Equinox, 2005.

Hasan, Ruqaiya, et al. Continuing Discourse on Language: A Functional Perspective. Equinox, 2005.