APA

Smythies J. R., . (1967). SCIENCE and Esp. London: Routledge and Kegan Paul.

Chicago

Smythies J R, . 1967. SCIENCE and Esp. London: Routledge and Kegan Paul.

Harvard

Smythies J. R., . (1967). SCIENCE and Esp. London: Routledge and Kegan Paul.

MLA

Smythies J R, . SCIENCE and Esp. London: Routledge and Kegan Paul. 1967.