-
(1970) - Norwegian University of Life Sciences, Ås Breirem, Knut Bok - in NMBU -
(1970) - Norwegian University of Life Sciences, Ås Løken, Karl Alf Bok - in NMBU -
(1970) - Norwegian University of Life Sciences, Ås Breirem, Knut Bok - in NMBU -
(1970) - Norwegian University of Life Sciences, Ås Løken, Karl Alf Bok - in NMBU -
(1970) - Norwegian University of Life Sciences, Ås Ottestad, Per Bok - in NMBU -
(1970) - Norwegian University of Life Sciences, Ås Ottestad, Per Bok - in NMBU -
(1970) - Norwegian University of Life Sciences, Ås Ottestad, Per Bok - in NMBU -
(1970) - J. W. Cappelens forlag AS Hanson, Bernhard Hamre, Johannes
Bok - in IMR