Dyfyniad APA

Hess, D. W. (1979). Pioneering in San Julian: A study of adaptive strategy formation by migrant farmers in eastern Bolivia. [s.l. :]: Ph. D. University of Pittsburgh.

Dyfyniad Arddull Chicago

Hess, David W. Pioneering in San Julian: A Study of Adaptive Strategy Formation By Migrant Farmers in Eastern Bolivia. [s.l. :]: Ph. D. University of Pittsburgh, 1979.

Dyfyniad MLA

Hess, David W. Pioneering in San Julian: A Study of Adaptive Strategy Formation By Migrant Farmers in Eastern Bolivia. [s.l. :]: Ph. D. University of Pittsburgh, 1979.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.