APA (7th ed.) Citation

Gerke, R. J., & Morris, P. O. (1987). Subsurface drainage of road structures. Australian Road Research Board.

Chicago Style (17th ed.) Citation

Gerke, R. J., and P. O. Morris. Subsurface Drainage of Road Structures. Vermont South, Vic.: Australian Road Research Board, 1987.

MLA (9th ed.) Citation

Gerke, R. J., and P. O. Morris. Subsurface Drainage of Road Structures. Australian Road Research Board, 1987.