Published in Tijdschr. Nederl. Dierk. Ver., in 1909, in volume 11, pages 71-79

Created: 2011-10-13, modified: 2024-03-24

Published in Tijdschrift der Nederlandsche Dierkundige Vereeniging, in 1909, in volume 11, issue 2, pages 99-125

Created: 2011-10-13, modified: 2024-03-24