Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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