Cita APA (7th ed.)

Lefter, J. (1993). Instrumentation for measuring scour at bridge piers and abutments. Transportation Research Board, National Research Council.

Cita Chicago (17th ed.)

Lefter, James. Instrumentation for Measuring Scour at Bridge Piers and Abutments. Washington, D.C: Transportation Research Board, National Research Council, 1993.

Cita MLA (9th ed.)

Lefter, James. Instrumentation for Measuring Scour at Bridge Piers and Abutments. Transportation Research Board, National Research Council, 1993.