Examination of the ease of milking of frisian cattle friesland (with a summary)
Keestra, J.
Examination of the ease of milking of frisian cattle friesland (with a summary) - Wageningen 1963 - 154 p. - No. 69.5; Netherlands Verslage .
637.124
Examination of the ease of milking of frisian cattle friesland (with a summary) - Wageningen 1963 - 154 p. - No. 69.5; Netherlands Verslage .
637.124