Cita APA (7a ed.)

WILSON P.F. (1985). THE CALM TECHNIQUE. PENGUIN BOOKS.

Cita Chicago Style (17a ed.)

WILSON P.F. THE CALM TECHNIQUE. ND: PENGUIN BOOKS, 1985.

Cita MLA (9a ed.)

WILSON P.F. THE CALM TECHNIQUE. PENGUIN BOOKS, 1985.