Παραπομπή 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.

Παραπομπή Chicago Style

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.

Παραπομπή 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.

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