Herbert Fröhlich

MLA

Hyland, G. J, and Gerard Hyland. Herbert Fröhlich. Springer International Publishing, 2015.

APA

Hyland, G. J, & Hyland, G. (2015). Herbert Fröhlich. Springer International Publishing.

Chicago

Hyland, G. J., and Gerard Hyland. Herbert Fröhlich. : Springer International Publishing, 2015.