Speaking 1.

MLA

Collie, Joanne, and Stephen Slater. Speaking 1. Cambridge: C.U.P., 1994.

APA

Collie, J., & Slater, S. (1994). Speaking 1. Cambridge: C.U.P.

Chicago

Collie, Joanne, and Stephen Slater. Speaking 1. Cambridge: C.U.P., 1994.