Egg grading manual
U.S. Department of Agriculture
Egg grading manual - Rev.ed - 1969 - 59p
EGGS - GRADING
EGGS - GRADING
637.5 U-4E
Egg grading manual - Rev.ed - 1969 - 59p
EGGS - GRADING
EGGS - GRADING
637.5 U-4E
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