1938 Fascicule 20: Geometridae
Exploration of National Park Albert (First series)
Mission G. F. de Witte (1933-1935):
DEBAUCHE, H. Geometridae. 56 p., 6 pls.
Exploration of National Park Albert (First series)
Mission G. F. de Witte (1933-1935):
DEBAUCHE, H. Geometridae. 56 p., 6 pls.