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Bulletin P

Volume 6

Number 116
February 1954
The 1953 Iowa corn yield test

Number 117
February 1955
A handbook for rose growers

Number 118
February 1955
The 1954 Iowa corn yield test

Number 119
January 1956
A guide for solving farm rental problems in Iowa

Number 120
February 1956
The 1955 Iowa corn yield test

Number 121
March 1956
Trees of Iowa

Number 122
January 1957
The water problem in Iowa