@book{UBHD-3466534, author={Malthus, Cecil}, publisher={Borealis Pr.}, address={Ottawa}, year={1984}, pages={XV, 94 S.}, isbn={0-88887-921-0 and 0-88887-964-4 and 978-0-88887-964-6 and 978-0-88887-921-9}, library={UB [Signatur: 86 A 10075::1]}, }