S.C.Van Doesburgh. (1930). The Development of Science in the Netherlands During the Last Half Century (1.). S.C.Van Doesburgh.

S.C.Van Doesburgh. The Development of Science in the Netherlands During the Last Half Century. 1. Netherlands: S.C.Van Doesburgh, 1930.

S.C.Van Doesburgh. The Development of Science in the Netherlands During the Last Half Century. 1. S.C.Van Doesburgh, 1930.