Koninklijke boomkweekerijen Groenewegen & zoon: Catalogus 1930/31. No. 191.
Koninklijke boomkweekerijen Groenewegen & zoon
Catalogus 1930/31. No. 191.
De Bilt, (1930), volume 70-71, pp. 16, text-illustrations, folded 4to (190 x 260 mm), printed wrappers (repaired, probably mounted plate missing).
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