John D. Black, Marion Clawson, Walter W. Wilcox & Charles R. Sayre.
Farm management.
R582300. Farm management. By John D. Black, Marion Clawson, Walter W. Wilcox & Charles R. Sayre. © 10Jun47; A13555. Nina Van Steenberg Black (W of John D. Black), Marion Clawson, Walter W. Wilcox & Charles R. Sayre (A); 26Jul74; R582300.
Nina Van Steenberg Black|W of John D. Black||Marion Clawson, Walter W. Wilcox & Charles R. Sayre|A