Cita APA (7a ed.)

Browning, M. A. (1991). Null operator constructions. Garland.

Cita Chicago Style (17a ed.)

Browning, M. A. Null Operator Constructions. New York [etc.]: Garland, 1991.

Cita MLA (9a ed.)

Browning, M. A. Null Operator Constructions. Garland, 1991.