Humphrey, C., & Hugh-Jones, S. (1992). Barter, exchange, and value: An anthropological approach. Cambridge UK: Cambridge University Press.
Чикагска система за цитиранеHumphrey, Caroline., и Stephen Hugh-Jones. Barter, Exchange, and Value: An Anthropological Approach. Cambridge UK: Cambridge University Press, 1992.
MLA формат за цитиранеHumphrey, Caroline., и Stephen Hugh-Jones. Barter, Exchange, and Value: An Anthropological Approach. Cambridge UK: Cambridge University Press, 1992.
Внимание: Тези цитати може да не са 100% точни.