Citazione APA

Shutts, G. C., & Weir, W. W. (1927). Agricultural arithmetic. Webb Pub. Co..

Stile di citazione Chicago

Shutts, George C., e Wilbert Walter Weir. Agricultural Arithmetic. St. Paul, Minn.: Webb Pub. Co., 1927.

Citazione MLA

Shutts, George C., e Wilbert Walter Weir. Agricultural Arithmetic. Webb Pub. Co., 1927.