APA (7th ed.) Citation

Heer, R. J. d. (1994). Hydraulic engineering in South-West Netherlands: Tour guide.

Chicago Style (17th ed.) Citation

Heer, R. J. de. Hydraulic Engineering in South-West Netherlands: Tour Guide. [s.l.], 1994.

MLA (9th ed.) Citation

Heer, R. J. de. Hydraulic Engineering in South-West Netherlands: Tour Guide. 1994.