R. W. Blake

BLAKE, R. W., MCDANIEL, B. T., & KING, R. A. (1979). COSTS OF MILK HARVEST IN DAIRY-CATTLE - IMPLICATIONS FOR DIRECT SELECTION AND COW CULLING. JOURNAL OF DAIRY SCIENCE, 62(9), 1424–1428. https://doi.org/10.3168/jds.S0022-0302(79)83440-2

BLAKE, R. W., MCDANIEL, B. T., & KING, R. A. (1978). LABOR AND MILKING MACHINE INPUTS TO MILK HARVEST IN DAIRY-CATTLE - IMPLICATIONS FOR DIRECT SELECTION. JOURNAL OF DAIRY SCIENCE, 61(4), 474–488. https://doi.org/10.3168/jds.S0022-0302(78)83623-6