APA (7th ed.) Citation

Harper, J. M., Jansen, G. R., Wilson, D., & Stumpf, P. (1976). Low-cost extrusion cookers, international workshop proceedings. A.I.D. R & D Report Distribution Center.

Chicago Style (17th ed.) Citation

Harper, J. M., G. R. Jansen, David Wilson, and Peggy Stumpf. Low-cost Extrusion Cookers, International Workshop Proceedings. Ann Arbor: A.I.D. R & D Report Distribution Center, 1976.

MLA (9th ed.) Citation

Harper, J. M., et al. Low-cost Extrusion Cookers, International Workshop Proceedings. A.I.D. R & D Report Distribution Center, 1976.