APA

Hill L. A., . (1964). Elementary refresher course. : Oxford University Press, Oxford.

Chicago

Hill L A, . 1964. Elementary refresher course. : Oxford University Press, Oxford.

Harvard

Hill L. A., . (1964). Elementary refresher course. : Oxford University Press, Oxford.

MLA

Hill L A, . Elementary refresher course. : Oxford University Press, Oxford. 1964.