APA (7th ed.) Citation

Zwaard, J. J. v. d. (1974). Roughness aspects of sand transports over a fixed bed. Delft Hydraulics Laboratory.

Chicago Style (17th ed.) Citation

Zwaard, J. J. van der. Roughness Aspects of Sand Transports over a Fixed Bed. Delft: Delft Hydraulics Laboratory, 1974.

MLA (9th ed.) Citation

Zwaard, J. J. van der. Roughness Aspects of Sand Transports over a Fixed Bed. Delft Hydraulics Laboratory, 1974.