Ventola, E. [ca. 1987]. The structure of social interaction : a systemic approach to the semiotics of service encounters. In Open linguistics series [Book]. London: Pinter.

VENTOLA, Eija, 1987. The structure of social interaction : a systemic approach to the semiotics of service encounters. London: Pinter. ISBN 0861876261.

Ventola, E. „The structure of social interaction : a systemic approach to the semiotics of service encounters“. Open linguistics series, book, Pinter, 1987.

Ventola, Eija: The structure of social interaction : a systemic approach to the semiotics of service encounters, London 1987.

Ventola, E. (1987), The structure of social interaction : a systemic approach to the semiotics of service encounters, Open linguistics series, Bd. , Pinter, London.