Penny, E. M. (1932). The co-operative movement and the consumer. York: National Guild of Co-operators (NGC).
Citación estilo ChicagoPenny, Edna M. The Co-operative Movement and the Consumer. York: National Guild of Co-operators (NGC), 1932.
Cita MLAPenny, Edna M. The Co-operative Movement and the Consumer. York: National Guild of Co-operators (NGC), 1932.
Warning: These citations may not always be 100% accurate.