Synthetische Artbildung. Grundlinien einer exakten Biologie. [ 2 volumes ].

Nilsson, Heribert.

Verlag CWK Gleerup, Lund, 1953

2 vols. Original wrappers (paperbacks) 734 pp., 735-1304 pp.; ills.; 25.5x18.5 cm. Text in German / Deutsch. - (spines folded, covers slightly worn, paper bit browned, few marginal lines in pencil) Although very good, see pictures