Brunn, A., Baehr, L., & Karpe, H. (1992). Conversion: Opportunities for development and environment. Springer-Verlag.
Chicago (17e ed.) BronvermeldingBrunn, A., L. Baehr, en H.-J Karpe. Conversion: Opportunities for Development and Environment. Berlin ; New York: Springer-Verlag, 1992.
MLA (9e ed.) BronvermeldingBrunn, A., et al. Conversion: Opportunities for Development and Environment. Springer-Verlag, 1992.