Cita APA (7a ed.)

Vrba, J., & Romijn, E. (1986). Impact of agricultural activities on ground water. Heise.

Cita Chicago Style (17a ed.)

Vrba, J., y E. Romijn. Impact of Agricultural Activities on Ground Water. Hannover: Heise, 1986.

Cita MLA (8a ed.)

Vrba, J., y E. Romijn. Impact of Agricultural Activities on Ground Water. Heise, 1986.