European potato journal v.4 (no.1) March 1961
Lapwood, D.H., ed.
European potato journal v.4 (no.1) March 1961 - Wageningen European Association for Potato Research 1961 - iv, 439 p.; 25cm.
European potato journal v.4 (no.1) March 1961 - Wageningen European Association for Potato Research 1961 - iv, 439 p.; 25cm.