An APL manual for the school of agricultural economics and extension education.
Robertson, Gerald C.
An APL manual for the school of agricultural economics and extension education. - Ontario : University of Grulph, 1973. - Reprint no. 29 .
Computer manual.
Agriculture.
Agricultural equipment.
An APL manual for the school of agricultural economics and extension education. - Ontario : University of Grulph, 1973. - Reprint no. 29 .
Computer manual.
Agriculture.
Agricultural equipment.