Cita APA (7a ed.)

Pauss, A., & Nyns, E. (1990). Energy. Biogas plants in europe an updated data-Bank (1a ed.). Universite Catholique de Louvain.

Cita Chicago Style (17a ed.)

Pauss, A., y E.J Nyns. Energy. Biogas Plants in Europe an Updated Data-Bank. 1a ed. Luxembourg: Universite Catholique de Louvain, 1990.

Cita MLA (9a ed.)

Pauss, A., y E.J Nyns. Energy. Biogas Plants in Europe an Updated Data-Bank. 1a ed. Universite Catholique de Louvain, 1990.