Background
Pettersson, Roger Bernt was born on June 8, 1955 in Hassjo, Sweden. Son of Erik and Maria (Maxe) Pettersson.
Pettersson, Roger Bernt was born on June 8, 1955 in Hassjo, Sweden. Son of Erik and Maria (Maxe) Pettersson.
Master of Science, University Umea, 1982. Doctor of Philosophy, Swedish University Agricultural Sciences, Umea, 1998.