APA

Butterworth, Critchley M., . (1990). Butterworth's Medical Dictionary. London: ELBS.

Chicago

Butterworth, Critchley Macdonald, . 1990. Butterworth's Medical Dictionary. London: ELBS.

Harvard

Butterworth, Critchley M., . (1990). Butterworth's Medical Dictionary. London: ELBS.

MLA

Butterworth, Critchley Macdonald, . Butterworth's Medical Dictionary. London: ELBS. 1990.