Phenotypical and genotypical eversporting varieties /
door Eltjo Tjarks Roelofs, geboren te Assen.

APA Citation

Roelofs, E. Tjarks. (1937). Phenotypical and genotypical eversporting varieties. 's-Gravenhage: Martinus Nijhoff.

MLA Citation

Roelofs, Eltjo Tjarks. Phenotypical And Genotypical Eversporting Varieties. 's-Gravenhage: Martinus Nijhoff, 1937.

Warning: These citations may not always be complete (especially for serials).