APA (7th ed.) Citation

Struckmeier, W. F., & Margat, J. (1995). Hydrological maps: A guide and a standard legend. Heise.

Chicago Style (17th ed.) Citation

Struckmeier, Wilhelm F., and Jean Margat. Hydrological Maps: A Guide and a Standard Legend. Hannover: Heise, 1995.

MLA (9th ed.) Citation

Struckmeier, Wilhelm F., and Jean Margat. Hydrological Maps: A Guide and a Standard Legend. Heise, 1995.