APA

Leonard J. W., . (1988). Tension structures. New York, NY [u.a.]: McGraw-Hill.

Chicago

Leonard John W, . 1988. Tension structures. New York, NY [u.a.]: McGraw-Hill.

Harvard

Leonard J. W., . (1988). Tension structures. New York, NY [u.a.]: McGraw-Hill.

MLA

Leonard John W, . Tension structures. New York, NY [u.a.]: McGraw-Hill. 1988.