MLA

Horbach, Jens, et al. New Frontiers In Environmental and Social Labeling. Physica-Verlag HD, 2007.

APA

Horbach, J., Basu, A., Chau, N. H, Feess, E., Grote, U., & Basu, A. K. (2007). New Frontiers in Environmental and Social Labeling. Physica-Verlag HD.

Chicago

Horbach, Jens, Arnab Basu, Nancy H Chau, Eberhard Feess, Ulrike Grote, and Arnab K Basu. New Frontiers In Environmental and Social Labeling. : Physica-Verlag HD, 2007.