APA (7th ed.) Citation

Ruppel, R. F., & Laughlin, C. W. (1972). Insects and nematodes in field beans, soybeans and sugarbeets (Revised Apr. 1972.). Cooperative Extension Service, Michigan State University.

Chicago Style (17th ed.) Citation

Ruppel, Robert F., and Charles William Laughlin. Insects and Nematodes in Field Beans, Soybeans and Sugarbeets. Revised Apr. 1972. E. Lansing, Mich.: Cooperative Extension Service, Michigan State University, 1972.

MLA (8th ed.) Citation

Ruppel, Robert F., and Charles William Laughlin. Insects and Nematodes in Field Beans, Soybeans and Sugarbeets. Revised Apr. 1972. Cooperative Extension Service, Michigan State University, 1972.