Cita APA (7th ed.)

Matthess, G., Foster, S., & Skinner, A. C. (1985). Theoretical background, hydrogeology and practice of groundwater protection zone. Heise.

Cita Chicago (17th ed.)

Matthess, G., SSD Foster, i A Ch Skinner. Theoretical Background, Hydrogeology and Practice of Groundwater Protection Zone. Hannover: Heise, 1985.

Cita MLA (9th ed.)

Matthess, G., et al. Theoretical Background, Hydrogeology and Practice of Groundwater Protection Zone. Heise, 1985.