APA

Ayer A. J., . (1963). The foundations of empirical Knowledge. London-New York: St. Martin's Press-Macmillan.

Chicago

Ayer A J, . 1963. The foundations of empirical Knowledge. London-New York: St. Martin's Press-Macmillan.

Harvard

Ayer A. J., . (1963). The foundations of empirical Knowledge. London-New York: St. Martin's Press-Macmillan.

MLA

Ayer A J, . The foundations of empirical Knowledge. London-New York: St. Martin's Press-Macmillan. 1963.