Davis, R. C., & Schleifer, R. Oklahoma project for discourse and theory. Univ. of Oklahoma Press.
Citazione stile Chigago Style (17a edizione)Davis, Robert Con, e Ronald Schleifer. Oklahoma Project for Discourse and Theory. Norman: Univ. of Oklahoma Press.
Citatione MLA (8a ed.)Davis, Robert Con, e Ronald Schleifer. Oklahoma Project for Discourse and Theory. Univ. of Oklahoma Press.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.