APA (7th ed.) Citation

Purdue University. Agricultural Experiment Station & Purdue University. Department of Agricultural Extension. (1906). Circular. Agricultural Experiment Station, Purdue University.

Chicago Style (17th ed.) Citation

Purdue University. Agricultural Experiment Station and Purdue University. Department of Agricultural Extension. Circular. Lafayette, Ind.: Agricultural Experiment Station, Purdue University, 1906.

MLA (9th ed.) Citation

Purdue University. Agricultural Experiment Station and Purdue University. Department of Agricultural Extension. Circular. Agricultural Experiment Station, Purdue University, 1906.